Update docs (ansible-collections#99)

* Update docs

Remove .git from repo url so links in readme will generate correctly
Add required ansible version
Run latest version of add_docs.py
Add version_added string to modules

* galaxy.yml was missing authors

This commit was initially merged in https://github.com/ansible-collections/community.aws
See: ansible-collections/community.aws@96ee268

plugins/modules/ec2_vpc_egress_igw.py

@@ -9,6 +9,7 @@
 DOCUMENTATION = '''
 ---
 module: ec2_vpc_egress_igw
+version_added: 1.0.0
 short_description: Manage an AWS VPC Egress Only Internet gateway
 description:
     - Manage an AWS VPC Egress Only Internet gateway