help-docs: Move help center documentation to top level directory.

These files are not Jinja2 templates, so there's no reason that they needed
to be inside `templates/zerver`. Moving them to the top level reflects their
importance and also makes it feel nicer to work on editing the help center content, 
without it being unnecessary buried deep in the codebase.

help/getting-your-organization-started-with-zulip.md

@@ -0,0 +1,124 @@
+# Setting up your organization
+
+Welcome to Zulip! This page will guide you through trying out Zulip,
+migrating your organization from other team chat tools (if needed),
+getting everything set up, and inviting others to join.
+
+If you are joining an existing organization, we recommend checking out
+our guide to [Getting started with Zulip][getting-started].
+
+[getting-started]: /help/getting-started-with-zulip
+
+If you encounter any problems as you're getting started, please drop
+by our [friendly development community](/development-community/) and let
+us know!
+
+## Trying out Zulip
+
+{!trying-out-zulip.md!}
+
+## Choosing between Zulip Cloud and self-hosting
+
+Whether [signing up for Zulip Cloud](/new/) or [self-hosting
+Zulip](/self-hosting/) is the right choice for you depends on the
+needs of your organization.
+
+If you aren’t sure what you need, our high quality export and import
+tools ([cloud][export-cloud], [self-hosted][export-self-hosted])
+ensure you can always move from our hosting to yours (and back).
+
+[export-cloud]: /help/export-your-organization
+[export-self-hosted]: https://zulip.readthedocs.io/en/latest/production/export-and-import.html
+
+### Advantages of Zulip Cloud
+
+{!advantages-of-zulip-cloud.md!}
+
+### Advantages of self-hosting Zulip
+
+{!advantages-of-self-hosting-zulip.md!}
+
+## Migrating from other chat tools
+
+{!migrating-from-other-chat-tools.md!}
+
+## Create your organization profile
+
+{!organization-profile-intro.md!}
+
+### Edit organization profile
+
+{!edit-organization-profile.md!}
+
+### Add a wide logo
+
+{!add-a-wide-logo.md!}
+
+## Customize organization settings
+
+{!customize-organization-settings.md!}
+
+## Create streams
+
+{!create-streams-intro.md!}
+
+### How to create a stream
+
+{start_tabs}
+
+{relative|stream|all}
+
+1. Click **Create stream** on the right.
+
+1. Fill out the requested info, and click **Create**.
+
+{end_tabs}
+
+For more details about stream settings, see [Create a
+stream](/help/create-a-stream#stream-options).
+
+### Tips for creating streams
+
+{!tips-for-creating-streams.md!}
+
+## Customize settings for new users
+
+{!customize-settings-for-new-users.md!}
+
+## Invite users to join
+
+!!! tip ""
+     Before inviting users, you may want to [delete any test messages][delete-message]
+     or [topics](/help/delete-a-topic).
+
+[delete-message]: /help/edit-or-delete-a-message#delete-a-message-completely
+
+### How to invite users to join
+
+{!how-to-invite-users-to-join.md!}
+
+To get everyone off to a good start, you may wish to share the guide
+to [Getting started with Zulip](/help/getting-started-with-zulip).
+
+!!! tip ""
+    You can link to your Zulip organization with a [nice badge](/help/linking-to-zulip).
+
+## Create user groups
+
+User groups allow you to [mention](/help/mention-a-user-or-group) multiple
+users at once, [notifying](/help/pm-mention-alert-notifications) them about a message. For example, you may choose to create user groups for teams in your organization.
+
+### How to create a user group
+
+{!how-to-create-a-user-group.md!}
+
+## Set up integrations
+
+{!set-up-integrations.md!}
+
+## Further reading
+
+* [Getting started with Zulip](/help/getting-started-with-zulip)
+* [Streams and topics](/help/streams-and-topics)
+* [Moderating open organizations](/help/moderating-open-organizations)
+* [Setting up Zulip for a class](/help/setting-up-zulip-for-a-class)