git-hooks: fix symbolic link command in README.rst

The symbolic linking command previously used resulted in broken relative
links. Updated the instructions to use $PWD when creating the symbolic
links to git hooks to avoid this.

git-hooks/README.rst

@@ -2,16 +2,23 @@
 Using StarCluster Git Hooks
 ###########################
 To enable StarCluster's git hooks that perform PEP8 formatting and pyflakes
-validation::
+validation prior to committing::
+
+1. Check out the StarCluster repo::
 
-1. First check out the repo::
     $ git clone https://github.com/jtriley/StarCluster.git
+
 2. Next change the current working directory to the root of the repo::
+
     $ cd StarCluster
-3. Install both ``pep8`` and ``pyflakes`` packages from PYPI::
+
+3. Make symbolic links to the hooks in your ``<repo>/.git/hooks`` directory::
+
+    $ ln -s $PWD/git-hooks/pre-commit $PWD/.git/hooks/pre-commit
+
+4. Install both ``pep8`` and ``pyflakes`` packages from PYPI::
+
     $ easy_install pep8 pyflakes
-4. Make symbolic links to the hooks in your ``<repo>/.git/hooks`` directory::
-    $ ln -s git-hooks/pre-commit .git/hooks/pre-commit
 
 Now whenever you run ``git commit`` both PEP8 and PyFlakes will check the files
 to be committed for errors, e.g.::