[OM] Invite Management doc pages have some errors

During my testing of the invite management endpoints I have found the following errors that should be addressed:

• [Atlas + Ops manager] Get All Organization Invitations: please change the description from "Retrieves all unaccepted invitations to the specified Atlas organization" to "Retrieves all pendings invitations to the specified Atlas organization"
• We should change the attribute teamId to teamIds for all the organization pages
• We should change the attribute inviterUserName to inviterUsername for all the pages (Ops Manager & Atlas)
• [Ops manager] Get All Project Invitations: the page says that the response contains Results, Links, TotCount but the example doesn’t contain these fields
• Delete One Project Invitation is missing for ops manager project
• [Ops manager]Delete One Organization Invitation: the URL should be changed from DELETE /groups/{ORG-ID}/invites/{INVITATION-ID} to DELETE /orgs/{ORG-ID}/invites/{INVITATION-ID}
•  [Atlas - project] Invite One User to an Atlas Project page is missing