Change 'To run' to 'To use' in all README.md files

As in:

    sgit -e 's/# To run/# To use/g' '*README.md'

This makes consistent the message for how to use the program. 'How to
use' was chosen because one can run a program just by doing './foo' but
that doesn't imply that's how to use it but the purpose of the section
is how to use it.

1996/august/README.md

@@ -11,7 +11,7 @@ make all
 ```
 
 
-## To run:
+## To use:
 
 ```sh
 cat august.c test.oc | ./august > test.oo

1996/dalbec/README.md

@@ -14,7 +14,7 @@ make all
 ```
 
 
-## To run:
+## To use:
 
 ```sh
 ./dalbec

1996/eldby/README.md

@@ -11,7 +11,7 @@ make alt
 ```
 
 
-## To run:
+## To use:
 
 ```sh
 ./eldby.alt

1996/gandalf/README.md

@@ -16,7 +16,7 @@ make all
 ```
 
 
-## To run:
+## To use:
 
 ```sh
 ./gandalf

1996/huffman/README.md

@@ -14,7 +14,7 @@ huffmancoding@gmail.com
 make all
 ```
 
-## To run:
+## To use:
 
 ```sh
 echo 'Huffman Decoding' | ./huffman

1996/jonth/README.md

@@ -19,7 +19,7 @@ install [XQuartz](https://www.xquartz.org) in order to compile and run this
 entry.
 
 
-## To run:
+## To use:
 
 ```sh
 ./jonth :0 :0

1996/rcm/README.md

@@ -11,7 +11,7 @@ US
 make all
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./rcm < rfc1951.gz

1996/schweikh1/README.md

@@ -13,7 +13,7 @@ Germany\
 make all
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./schweikh1

1996/schweikh2/README.md

@@ -14,7 +14,7 @@ Germany\
 make all
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./schweikh2

1996/schweikh3/README.md

@@ -13,7 +13,7 @@ Germany\
 make all
 ```
 
-## To run:
+## To use:
 
 **WARNING: DO NOT RUN this program without reading this text down to the end!**
 It may render your system unusable for a limited amount of time

1996/westley/README.md

@@ -14,7 +14,7 @@ make all
 ```
 
 
-## To run:
+## To use:
 
 ```sh
 sh ./clock1