docs: announce plugin API (#812)

nfischer · web-flow · commit 8f8119cfae6e · 2018-01-11T21:12:42.000-08:00
Fixes #391
diff --git a/README.md b/README.md
@@ -48,6 +48,12 @@ $ shx touch foo/bar.txt
 $ shx rm -rf foo
 ```
 
+## Plugin API
+
+ShellJS now supports third-party plugins! You can learn more about using plugins
+and writing your own ShellJS commands in [the
+wiki](https://github.com/shelljs/shelljs/wiki/Using-ShellJS-Plugins).
+
 ## A quick note about the docs
 
 For documentation on all the latest features, check out our
