Add backticks to ChangeAndReleaseManagement.md

[rjyounes]

Change line 17:

"Label with one of the closed values: already resolved, can't reproduce, completed, duplicate, invalid, won't fix."

to

"Label with one of the closed values: already resolved, can't reproduce, completed, duplicate, invalid, won't fix."

Change line 34:

This case is similar to the "will implement" case, in that an assignee is designated to carry the discussion forward at a subsequent meeting. The difference is that here it is not yet agreed whether or how the issue will be addressed. Labels are applied as above, including status: in review.

to

This case is similar to the will implement case, in that an assignee is designated to carry the discussion forward at a subsequent meeting. The difference is that here it is not yet agreed whether or how the issue will be addressed. Labels are applied as above, including status: in review.