Format/typo check 1988/applin

The README.md and the Makefile were both updated. The Makefile because
of typos/unclear things. The README.md had formatting fixes and also
added the historical note about 1988 from the Makefile as it's far less
likely people will see that note versus that which is in the README.md.

1988/applin/Makefile

@@ -131,9 +131,9 @@ all: data ${TARGET}
 #
 # This entry took 75 minutes to compile on a Amdahl 5980-300E
 # (a 55658 Dhyrstone/sec/cpu machine) using the System V cpp.
-# (The GNU cpp when defined as BIG_CPP took only 45 seconds)
+# (The GNU cpp when defined as BIG_CPP took only 45 seconds.)
 # Your cpp may not be able to compile it due to a common bug
-# that results in ${CPP} running out of space.  The routine
+# that results in cpp running out of space.  The routine
 # 'zsmall' is a smaller version of the applin.c entry.
 #
 ${PROG}: ${PROG}.c

1988/applin/README.md

@@ -1,7 +1,7 @@
 # Best of show
 
-Jack Applin  
-US  
+Jack Applin<br>
+US<br>
 <https://www.cs.colostate.edu/~applin/>
 
 ## To build:
@@ -10,9 +10,10 @@ US
 make all
 ```
 
-A smaller version, originally called `zsmall.c`, of [applin.c](applin.c) can be
-found in [applin.alt.c](applin.alt.c).  Your machine may have an easier time
-with this program.  See the Alternate code section below for details.
+A smaller version, originally called `zsmall.c` (and still exists as such, as
+the source of the alt code), of [applin.c](applin.c), can be found in
+[applin.alt.c](applin.alt.c).  Your machine may have an easier time with this
+program.  See the [Alternate code](#alternate-code) section below for details.
 
 ## Try:
 
@@ -22,8 +23,10 @@ with this program.  See the Alternate code section below for details.
 
 ### Alternate code:
 
-As noted above a smaller version can be used in case your cpp has a hard time
-with this entry. To use:
+As noted above a smaller version can be used in case your `cpp` has a hard time
+with this entry.
+
+#### To build:
 
 ```sh
 make alt
@@ -31,22 +34,34 @@ make alt
 
 Use `applin.alt` as you would `applin` above.
 
+#### History about the smaller version:
+
+Way back in 1988 ..
+
+This entry took 75 minutes to compile on a Amdahl 5980-300E (a 55658
+Dhyrstone/sec/cpu machine) using the System V `cpp`.  (The GNU `cpp` when defined as
+`BIG_CPP` took only 45 seconds.)
+
+Your `cpp` may not be able to compile it due to a common bug that results in
+`cpp` running out of space.  The routine [zsmall](zsmall.c) is a smaller version
+of the [applin.c](applin.c) entry.
+
 
 ## Judges' remarks:
 
 This entry is by far the most unusual abuse of the C preprocessor that
 we have received thus far.  Nearly all of the real work is done in the
-preprocessor!
+C preprocessor!
 
 When we compiled [applin.c](applin.c) on an
 [Amdahl](https://en.wikipedia.org/wiki/Amdahl_Corporation) 5890-300E, we found that it
 spent over 75 minutes in the System V C preprocessor!  Besides showing that the
-standard System V cpp is slow, it showed that it contained a memory usage
+standard System V `cpp` is slow, it showed that it contained a memory usage
 problem.  The [applin.c](applin.c) only uses 29 different preprocessor symbols
 (besides `stdio.h`) and yet the preprocessor ran out of space!
 
-The GNU C preprocessor took less than 45 seconds to perform the 2nd pass 
-on the Amdahl 5890-300E.  But due to the ANSI-likeness of GNU cpp (v. 1-21), 
+The GNU C preprocessor took under 45 seconds to perform the 2nd pass
+on the Amdahl 5890-300E.  But due to the ANSI-likeness of GNU `cpp` (v. 1-21),
 it was not able to cleanly substitute a symbol that began with a '#'.
 Clearly the GNU C preprocessor is faster.