Add small fixes to lab6 and lab11

Adressing issues from @padiazg also adding small changes
to the lab11 like changing name from `clearHash` to `getHash`
and adding `python` `yml` and `bash` to the code snippets

Signed-off-by: Martin Dekov (VMware) <[email protected]>

Update messaging on specifying a different gateway endpoint

Signed-off-by: Eric Stoekl <[email protected]>