Create README.md

README.md

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+# wiki-cli
+A simple bash script for reading wiki articles from the command line.
+
+This command depends on the fact that the output of the
+[wiki Makefile](https://github.com/tildeclub/site/blob/master/wiki/Makefile)
+includes `.txt` output. If that script ever changed where it put files, this
+script would have to be updated.
+
+```
+usage: wiki <article>
+  read the article with the given 'short title'
+usage: wiki --list
+  list all available short titles
+```