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.

2020/burton/README.md

@@ -9,7 +9,7 @@ Dave Burton
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog arg ...

2020/carlini/README.md

@@ -9,7 +9,7 @@ Nicholas Carlini <nicholas@carlini.com>\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/endoh1/README.md

@@ -10,7 +10,7 @@ Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/endoh2/README.md

@@ -10,7 +10,7 @@ Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/endoh3/README.md

@@ -10,7 +10,7 @@ Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/ferguson1/README.md

@@ -11,7 +11,7 @@ Mastodon: [@xexyl@fosstodon.org](https://fosstodon.org/@xexyl)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 WAIT=N WALLS=[01] EVADE=N SIZE=N MAXSIZE=N GROW=N SHEDS=N SHED=N CANNIBAL=[01] ./prog

2020/ferguson2/README.md

@@ -12,7 +12,7 @@ Mastodon: [@xexyl@fosstodon.org](https://fosstodon.org/@xexyl)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/giles/README.md

@@ -9,7 +9,7 @@ Edward Giles\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/kurdyukov1/README.md

@@ -9,7 +9,7 @@ Ilya Kurdyukov\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/kurdyukov2/README.md

@@ -9,7 +9,7 @@ Ilya Kurdyukov\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/kurdyukov3/README.md

@@ -9,7 +9,7 @@ Ilya Kurdyukov\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/kurdyukov4/README.md

@@ -9,7 +9,7 @@ Ilya Kurdyukov\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog text_file output_length context_length random_seed

2020/otterness/README.md

@@ -9,7 +9,7 @@ Nathan Otterness\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/tsoj/README.md

@@ -9,7 +9,7 @@ tsoj <tsoj.tsoj@gmx.de>\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog

2020/yang/README.md

@@ -9,7 +9,7 @@ Don Yang\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./prog [PIN] < input.txt > output.c