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.

2013/birken/README.md

@@ -11,7 +11,7 @@ Michael Birken\
 make alt
 ```
 
-## To run:
+## To use:
 
 To see why we recommend the alternate version instead of the original version,
 see the [original code](#original-code) section.

2013/cable1/README.md

@@ -9,7 +9,7 @@ Adrian Cable\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./cable1 name group1 group2

2013/cable2/README.md

@@ -9,7 +9,7 @@ Adrian Cable\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./cable2 file.bmp [color]

2013/cable3/README.md

@@ -13,7 +13,7 @@ make
 An alternate version that should compile in Windows/MS Visual Studio is
 available. See the [Alternate code](#alternate-code) section below.
 
-## To run:
+## To use:
 
 ```sh
 ./cable3 bios-image-file floppy-image-file [harddisk-image-file]
@@ -194,7 +194,7 @@ stty cooked echo
 
 See the [runme](runme) script.
 
-## To run the emulator - floppy mode only
+## To use the emulator - floppy mode only
 
 The simplest use of the emulator is with a single floppy boot disk image, like
 the fd.img provided, which is a FreeDOS boot disk.
@@ -210,7 +210,7 @@ stty cbreak raw -echo min 0
 stty cooked echo
 ```
 
-## To run the emulator - floppy + HD mode
+## To use the emulator - floppy + HD mode
 
 Easiest to start with is to try a ready-made 40MB hard disk image containing a
 whole bunch of software: <http://bitly.com/1bU8URK>

2013/dlowe/README.md

@@ -11,7 +11,7 @@ US\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./dlowe [numbers...]

2013/endoh1/README.md

@@ -11,7 +11,7 @@ Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./endoh1 [file.lazy]

2013/endoh2/README.md

@@ -11,7 +11,7 @@ Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 make check

2013/endoh3/README.md

@@ -11,7 +11,7 @@ Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./endoh3

2013/endoh4/README.md

@@ -11,7 +11,7 @@ Mastodon: [@mame@ruby.social](https://ruby.social/@mame)
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./endoh4 < file

2013/hou/README.md

@@ -10,7 +10,7 @@ Qiming Hou\
 make all
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./hou [scene-file-name] [options]

2013/mills/README.md

@@ -9,7 +9,7 @@ Christopher Mills\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./mills

2013/misaka/README.md

@@ -13,7 +13,7 @@ make
 This will build a bunch of versions of the code. See the author's details for
 information on all of these builds.
 
-## To run:
+## To use:
 
 ```sh
 ./horizontal_cat [files...] > [output]

2013/morgan1/README.md

@@ -9,7 +9,7 @@ Yves-Marie Morgan\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 echo "2013/10/03" | ./morgan1

2013/morgan2/README.md

@@ -9,7 +9,7 @@ Yves-Marie Morgan\
 make
 ```
 
-## To run:
+## To use:
 
 For the console version (ncurses):
 

2013/robison/README.md

@@ -9,7 +9,7 @@ Arch D. Robison\
 make
 ```
 
-## To run:
+## To use:
 
 ```sh
 ./robison