New ansible syntax and require now ansible 2.9

Merge pull request #7 from roles-ansible/new

Add Releaseing button to README

Now require ansible 2.10

• This role now require ansible 2.10 by default (still can be changed via variables)
• the master branch is now renamed to main

stable release including travis and actionchecks

Merge pull request #1 from roles-ansible/t

update action checks and readme