manifest: update readme for 11

Change-Id: I56d9d6c6ff249535a2ecb5093d05c49e6d98049d
diff --git a/README.md b/README.md
index 0c43129..587fb21 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
     <make edits>
     git add -A
     git commit -m "commit message"
-    git push ssh://<username>@gerrit.omnirom.org:29418/<project> HEAD:refs/for/android-10
+    git push ssh://<username>@gerrit.omnirom.org:29418/<project> HEAD:refs/for/android-11
 
 Register at <gerrit.omnirom.org> and use the username that you registered there in the above command
 
@@ -64,7 +64,7 @@
 
 To initialize your local repository using the OmniROM trees, use a command like this:
 
-    repo init -u git://github.com/omnirom/android.git -b android-10
+    repo init -u git://github.com/omnirom/android.git -b android-11
 
 Then to sync up: