Made some changes to the UNIX 102 page; added git add, link to gitref.

unix102/index.xml

@@ -7,6 +7,7 @@
 
   <section title="UNIX 102 Reference Material"> 
     <p>
+    <!-- http://programmerryangosling.tumblr.com/ -->
       This page contains some links to material covered during UNIX 101 and 102,
       as well as some extracurricular content for you to review in your free
       time.  
@@ -48,9 +49,8 @@
     <ul>
       <li>Simple script whose parameters are any number of text files, that will
         print all the files and filenames to standard output: appender</li>
-      <li>Simple renaming script that takes two strings, one to replace with the
-        other, and renames all files in the current directory as specified: 
-        renamer</li>
+      <li>RunC clone, that takes in a filename and executes all the tests it
+        can find for it in the current directory: WalkC</li>
       <li>Script that scrapes concert website for tickets and sends emails/text
         messages when tickets are available: tickets_email</li>
     </ul>
@@ -66,7 +66,9 @@
 
   <section title="git References">
     <p>
-      Here's an article I found claiming to list the <a href="http://sixrevisions.com/resources/git-tutorials-beginners/">top 10 git tutorials</a>.
+      Look to the <a href="http://gitref.org/index.html">gitref</a> for a git 
+      reference, of course. As well, here's an article I found claiming to list 
+      the <a href="http://sixrevisions.com/resources/git-tutorials-beginners/">top 10 git tutorials</a>.
       Whether or not that's true, you should still learn something.
       Here is also a brief review of the commands we covered today.
     </p>
@@ -79,6 +81,10 @@
     <pre>
       git pull
     </pre>
+    This adds new files to the git repository:
+    <pre>
+      git add [files]
+    </pre>
     This commits any of the changes that you've recently made in [files] (or -a 
     for everything), getting ready to "push" the changes to other users:
     <pre>