Revert "Create TODO_LIST"

This reverts commit 61005138d7d26164551d726670730061599a5be0.
Revert "Revert "Create TODO_LIST""

This reverts commit 83ff52297b5af30a6ac3f204e1e8a65558b5a570.
Merge branch 'master' of https://github.com/toyandong/xen_docs