update markdown/help header format
Since gitiles recommends using # headers over ---/=== underlines,
change the manifest-format.md over and all our help texts.
Change-Id: I96391d41fba769e9f26870d497cf7cf01c8d8ab3
diff --git a/subcmds/init.py b/subcmds/init.py
index 47a1c9f..4e51dfe 100644
--- a/subcmds/init.py
+++ b/subcmds/init.py
@@ -67,8 +67,7 @@
may be necessary if there are problems with the local Python
HTTP client or proxy configuration, but the Git binary works.
-Switching Manifest Branches
----------------------------
+# Switching Manifest Branches
To switch to another manifest branch, `repo init -b otherbranch`
may be used in an existing client. However, as this only updates the