Create branch-naming-convention.yml

[melpadden]

Naming convention is defined by Regex as follows; ^(feat|issue|fix|exp)\/([a-z0-9]+)\/([0-9]+)-([a-z0-9]+) in English:

• feat OR issue OR fix OR exp
• slash & type of change ("article" for most)
• slash, issue number, dash and then short description