Fixed docs; ~ won't work as bash must expand it first.

README.md

@@ -28,7 +28,7 @@ Usage:
 For example:
 
     $ cp bundler-bin/bundler-bin.sh ~/.bundler-bin.sh
-    $ echo "PROJECT_ROOT=~/code" >> ~/.bashrc
+    $ echo "PROJECT_ROOT=$HOME/code" >> ~/.bashrc
     $ echo "[ -f ~/.bundler-bin.sh ] && source ~/.bundler-bin.sh" >> ~/.bashrc
 
 That's it... cd into a bundled project and try `echo $PATH` to see if

bundler-bin.sh

@@ -19,7 +19,7 @@
 #
 # 1. Copy bundler-bin.sh to ~/.bundler-bin.sh.
 # 2. Set PROJECT_ROOT to the parent directory of your bundled projects
-#    (e.g. ~/code). Why is this needed? See update_bundler_path below.
+#    (e.g. $HOME/code). Why is this needed? See update_bundler_path below.
 # 3. Source it from your ~/.bashrc file.
 #
 # For example: