Update README for CM 10.1

Update to reflect:

1) CM .org changes
2) Fix 404 for Repo help and add in git help page
3) Point to cm-10.1 branch
4) Fix reference to buildbots to point to Jenkins instead

Patchset 2: White space, missed a .org and fixed grammar for Jenkins.
Patchset 3: Fix wiki link 404 due to short-url extension. Swap a few urls to https

Change-Id: I89510d6afcab0e1c302dd31884eeb130e9324142
diff --git a/README.mkdn b/README.mkdn
index 998186b..70489ab 100644
--- a/README.mkdn
+++ b/README.mkdn
@@ -11,7 +11,7 @@
     (Go to repo you are patching, make your changes and commit)
     cmgerrit <for(new)/changes(patch set)> <branch/change-id> 
 
-    repo start jb .
+    repo start cm-10.1 .
     (Make your changes and commit)
     repo upload .
 Note: "." meaning current directory
@@ -27,7 +27,7 @@
 ---------------
 
 To get started with Android/CyanogenMod, you'll need to get
-familiar with [Git and Repo](http://source.android.com/download/using-repo).
+familiar with [Repo](https://source.android.com/source/using-repo.html) and [Version Control with Git](https://source.android.com/source/version-control.html).
 
 To initialize your local repository using the CyanogenMod trees, use a command like this:
 
@@ -37,14 +37,14 @@
 
     repo sync
 
-Please see the [CyanogenMod Wiki](http://wiki.cyanogenmod.org/) for building instructions.
+Please see the [CyanogenMod Wiki](http://wiki.cyanogenmod.org/) for building instructions, by device.
 
 For more information on this Github Organization and how it is structured, 
-please [read the wiki article](http://wiki.cyanogenmod.org/index.php/Github_Organization)
+please [read the wiki article](http://wiki.cyanogenmod.org/w/Github_Organization)
 
 Buildbot
 --------
 
 All supported devices are built nightly and periodically as changes are committed to ensure the source trees remain buildable.
 
-You can view the current build statuses at [jenkins.cyanogenmod.org/](http://jenkins.cyanogenmod.org/)
+You can view the current build statuses in the [Jenkins](http://jenkins.cyanogenmod.org) tool.