Changed doc/README.mdtoc and built README.md and changed nomenclature to 'ruby versions' as requested.

README.md

@@ -45,7 +45,7 @@ tools that do one thing well.
          * [2.1.1 Upgrading](#section_2.1.1)
       * [2.2 Homebrew on Mac OS X](#section_2.2)
       * [2.3 Neckbeard Configuration](#section_2.3)
-      * [2.4 Uninstalling Rubies](#section_2.4)
+      * [2.4 Uninstalling Ruby Versions](#section_2.4)
    * [3 Usage](#section_3)
       * [3.1 rbenv global](#section_3.1)
       * [3.2 rbenv local](#section_3.2)
@@ -203,7 +203,7 @@ opposed to this idea. Here's what `rbenv init` actually does:
 Run `rbenv init -` for yourself to see exactly what happens under the
 hood.
 
-### <a name="section_2.4"></a> 2.4 Uninstalling Rubies
+### <a name="section_2.4"></a> 2.4 Uninstalling Ruby Versions
 
 As time goes on, ruby versions you install will accumulate in your
 `~/.rbenv/versions` directory.

doc/README.mdtoc

@@ -183,6 +183,15 @@ opposed to this idea. Here's what `rbenv init` actually does:
 Run `rbenv init -` for yourself to see exactly what happens under the
 hood.
 
+### Uninstalling Ruby Versions ###
+
+As time goes on, ruby versions you install will accumulate in your
+`~/.rbenv/versions` directory.
+
+There is no uninstall or remove command in `rbenv`, so removing old
+versions is a simple matter of `rm -rf` the directory of the relevant
+ruby version you want removed under `~/.rbenv/versions`
+
 ## Usage ##
 
 Like `git`, the `rbenv` command delegates to subcommands based on its