Tap with no cap(italization)

Signed-off-by: Jack Nagel <[email protected]>

README.md

@@ -4,9 +4,9 @@ These formulae provide multiple versions of existing packages.
 
 How do I install these formulae?
 --------------------------------
-Just `brew tap Homebrew/versions` and then `brew install <formula>`.
+Just `brew tap homebrew/versions` and then `brew install <formula>`.
 
-If the formula conflicts with one in mxcl/master, you can `brew install Homebrew/versions/<formula>`.
+If the formula conflicts with one from mxcl/master or another tap, you can `brew install homebrew/versions/<formula>`.
 
 You can also install via URL: