fix .gitignore, Makefile, README.md for 2005/chia

2005/chia/README.md

@@ -4,22 +4,32 @@
         Singapore
         bi@mncw.tk
 
-## Judges' comments
+# To build:
+
+```sh
+make
+```
+
+### To run:
+
+```sh
+./chia
+```
+
+### Try:
+
+```sh
+echo "Do or do not. There is no try."
+```
+
+## Judges' comments:
 
 Have you had your morning cup of Java?  You might want a
 second cup before parsing this entry.  And give your C
 pre-processor a triple shot as it tries to handle parameters
 for "stringification".
 
-### To build
-
-      cc chia.c -o chia
-
-### To run
-
-      chia
-
-## Author's comments
+## Author's comments:
 
 Two things inspired this entry. First, there were the C programs which were
 `#define`'d to look like Pascal or Visual Basic: the /bin/sh code from V7 Unix