Merge pull request #572 from mattermost/it33-patch-9

Updating table of contents for doc

doc/README.md

@@ -2,4 +2,12 @@
 
 ## Administrator Documentation 
 
+### Installation 
+
+- [Install Requirements](doc/install/requirements.md)
+- [Local Machine Setup ](doc/install/single-container-install.md)
+- [AWS Elastic Beanstalk Setup](doc/install/aws-ebs-setup.md)
+
+### Configuration 
+
 - [GitLab SSO Configuration](integrations/sso/gitlab-sso.md) - Configure OAuth2 Single-Sign-On for GitLab.