Add note about the repository rename from 'repo' to 'mcviz'

Author: pwaller

2011-09-17-repo-move

@@ -0,0 +1,27 @@
+When you did your last pull you may have seen something like:
+
+    $ git pull
+    warning: no common commits
+    remote: Counting objects: 3, done.
+    remote: Total 3 (delta 0), reused 3 (delta 0)
+    Unpacking objects: 100% (3/3), done.
+    From github.com:mcviz/repo
+     * [new branch]      repo_moved_see_mcviz.net/2011-09-17-repo-move -> gh/repo_moved_see_mcviz.net/2011-09-17-repo-move
+    You asked to pull from the remote 'gh', but did not specify
+    a branch. Because this is not the default configured remote
+    for your current branch, you must specify a branch on the command line.
+
+This happened because we renamed the repository from "repo" to "mcviz".
+
+You need to do the following:
+
+* Look in your plaintext `mcviz/.git/config` file
+* Find lines that look like this:
+
+    url = [email protected]:mcviz/repo.git
+
+(or git://github.com/mcviz/repo.git or https://github.com/mcviz/repo.git)
+
+and change `repo` to `mcviz`, i.e:
+
+    url = [email protected]:mcviz/mcviz    .git