Updated Setting up Drush (markdown)

Setting-up-Drush.md

@@ -39,8 +39,8 @@ $ ./vendor/bin/drush status
 Lastly we need to add `drush` in the **$PATH**:
 
 ```
-$ mkdir bin
-$ cd bin
+$ mkdir ~/bin
+$ cd ~/bin
 $ ln -s ../cms/vendor/bin/drush
 ```