add original C links to entry navigation bars

The navigation bar for a winning entry now has a "_Original C_" link
(between the ✅ and the Inventory on the right hand side) so that one
may easily view the original C code that was submitted for IOCCC judging.

Ran `make www timestamp` to perform the above.

2013/birken/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/birken/birken.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/birken/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/birken/birken.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fbirken%2Findex.html">&#x2713;</a>
 </div>
 

2013/cable1/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable1/cable1.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable1/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable1/cable1.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fcable1%2Findex.html">&#x2713;</a>
 </div>
 

2013/cable2/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable2/cable2.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable2/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable2/cable2.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fcable2%2Findex.html">&#x2713;</a>
 </div>
 

2013/cable3/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable3/cable3.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable3/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/cable3/cable3.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fcable3%2Findex.html">&#x2713;</a>
 </div>
 

2013/dlowe/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/dlowe/dlowe.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/dlowe/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/dlowe/dlowe.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fdlowe%2Findex.html">&#x2713;</a>
 </div>
 

2013/endoh1/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh1/endoh1.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh1/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh1/endoh1.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fendoh1%2Findex.html">&#x2713;</a>
 </div>
 

2013/endoh2/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh2/endoh2.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh2/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh2/endoh2.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fendoh2%2Findex.html">&#x2713;</a>
 </div>
 

2013/endoh3/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh3/endoh3.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh3/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh3/endoh3.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fendoh3%2Findex.html">&#x2713;</a>
 </div>
 

2013/endoh4/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh4/endoh4.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh4/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/endoh4/endoh4.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fendoh4%2Findex.html">&#x2713;</a>
 </div>
 

2013/hou/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/hou/hou.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/hou/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/hou/hou.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fhou%2Findex.html">&#x2713;</a>
 </div>
 

2013/mills/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/mills/mills.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/mills/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/mills/mills.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fmills%2Findex.html">&#x2713;</a>
 </div>
 

2013/misaka/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/misaka/misaka.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/misaka/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/misaka/misaka.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fmisaka%2Findex.html">&#x2713;</a>
 </div>
 

2013/morgan1/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/morgan1/morgan1.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/morgan1/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/morgan1/morgan1.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fmorgan1%2Findex.html">&#x2713;</a>
 </div>
 

2013/morgan2/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/morgan2/morgan2.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/morgan2/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/morgan2/morgan2.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Fmorgan2%2Findex.html">&#x2713;</a>
 </div>
 

2013/robison/index.html

@@ -447,6 +447,7 @@
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/robison/robison.c">C code</a>
   <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/robison/Makefile">Makefile</a>
   <a class="Right" href="#inventory">Inventory</a>
+  <a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2013/robison/robison.orig.c">Original C</a>
   <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2013%2Frobison%2Findex.html">&#x2713;</a>
 </div>