Carve off app information to new page

Continue splitting app-specific information out of the index page,
in prep for a larger rewrite. No changes other than fixing links and
header numbers.

doc/integration/jira/connect-app.md

+---
+stage: Create
+group: Ecosystem
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
+---
+
+# GitLab for Jira app **(FREE SAAS)**
+
+You can integrate GitLab.com and Jira Cloud using the
+[GitLab for Jira](https://marketplace.atlassian.com/apps/1221011/gitlab-com-for-jira-cloud)
+app in the Atlassian Marketplace. The user configuring GitLab for Jira must have
+[Maintainer](../../user/permissions.md) permissions in the GitLab namespace.
+
+This method is recommended when using GitLab.com and Jira Cloud because data is synchronized in real-time. The DVCS connector updates data only once per hour. If you are not using both of these environments, use the [Jira DVCS Connector](dvcs.md) method.
+
+<i class="fa fa-youtube-play youtube" aria-hidden="true"></i>
+For a walkthrough of the integration with GitLab for Jira, watch [Configure GitLab Jira Integration using Marketplace App](https://youtu.be/SwR-g1s1zTo) on YouTube.
+
+1. Go to **Jira Settings > Apps > Find new apps**, then search for GitLab.
+1. Click **GitLab for Jira**, then click **Get it now**, or go to the
+   [App in the marketplace directly](https://marketplace.atlassian.com/apps/1221011/gitlab-com-for-jira-cloud).
+
+   ![Install GitLab App on Jira](img/jira_dev_panel_setup_com_1.png)
+1. After installing, click **Get started** to go to the configurations page.
+   This page is always available under **Jira Settings > Apps > Manage apps**.
+
+   ![Start GitLab App configuration on Jira](img/jira_dev_panel_setup_com_2.png)
+1. If not already signed in to GitLab.com, you must sign in as a user with
+   [Maintainer](../../user/permissions.md) permissions to add namespaces.
+
+   ![Sign in to GitLab.com in GitLab Jira App](img/jira_dev_panel_setup_com_3_v13_9.png)
+1. Select **Add namespace** to open the list of available namespaces.
+
+1. Identify the namespace you want to link, and select **Link**.
+
+   ![Link namespace in GitLab Jira App](img/jira_dev_panel_setup_com_4_v13_9.png)
+
+NOTE:
+The GitLab user only needs access when adding a new namespace. For syncing with
+Jira, we do not depend on the user's token.
+
+After a namespace is added:
+
+- All future commits, branches, and merge requests of all projects under that namespace
+  are synced to Jira.
+- From GitLab 13.8, past merge request data is synced to Jira.
+
+Support for syncing past branch and commit data [is planned](https://gitlab.com/gitlab-org/gitlab/-/issues/263240).
+
+For more information, see [Usage](index.md#usage).
+
+## Troubleshooting GitLab for Jira
+
+The GitLab for Jira App uses an iframe to add namespaces on the settings page. Some browsers block cross-site cookies. This can lead to a message saying that the user needs to log in on GitLab.com even though the user is already logged in.
+
+> "You need to sign in or sign up before continuing."
+
+In this case, use [Firefox](https://www.mozilla.org/en-US/firefox/) or enable cross-site cookies in your browser.

doc/integration/jira/dvcs.md

@@ -7,7 +7,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 # Jira DVCS connector
 
 If you're using GitLab.com and Jira Cloud, use the
-[GitLab for Jira app](index.md#gitlab-for-jira-app) unless you have a specific need for the DVCS Connector.
+[GitLab for Jira app](connect-app.md) unless you have a specific need for the DVCS Connector.
 
 When configuring Jira DVCS Connector:
 
@@ -46,7 +46,7 @@ create and use a single-purpose `jira` user in GitLab.
 ## Jira DVCS Connector setup
 
 If you're using GitLab.com and Jira Cloud, use the
-[GitLab for Jira app](index.md#gitlab-for-jira-app) unless you have a specific need for the DVCS Connector.
+[GitLab for Jira app](connect-app.md) unless you have a specific need for the DVCS Connector.
 
 1. Ensure you have completed the [GitLab configuration](#gitlab-account-configuration-for-dvcs).
 1. If you're using Jira Server, go to **Settings (gear) > Applications > DVCS accounts**.

doc/integration/jira/index.md

@@ -49,59 +49,6 @@ self-managed GitLab) set up the integration to simplify administration.
 | [Atlassian cloud](https://www.atlassian.com/cloud) | The [GitLab.com for Jira Cloud](https://marketplace.atlassian.com/apps/1221011/gitlab-com-for-jira-cloud?hosting=cloud&tab=overview) application installed from the [Atlassian Marketplace](https://marketplace.atlassian.com). This offers real-time sync between GitLab and Jira. | The [GitLab.com for Jira Cloud](https://marketplace.atlassian.com/apps/1221011/gitlab-com-for-jira-cloud?hosting=cloud&tab=overview), using a workaround process. See a [relevant issue](https://gitlab.com/gitlab-org/gitlab/-/issues/268278) for more information. |
 | Your own server | The Jira DVCS (distributed version control system) connector. This syncs data hourly. | The [Jira DVCS Connector](dvcs.md). |
 
-### GitLab for Jira app **(FREE SAAS)**
-
-You can integrate GitLab.com and Jira Cloud using the
-[GitLab for Jira](https://marketplace.atlassian.com/apps/1221011/gitlab-com-for-jira-cloud)
-app in the Atlassian Marketplace. The user configuring GitLab for Jira must have
-[Maintainer](../../user/permissions.md) permissions in the GitLab namespace.
-
-This method is recommended when using GitLab.com and Jira Cloud because data is synchronized in real-time. The DVCS connector updates data only once per hour. If you are not using both of these environments, use the [Jira DVCS Connector](dvcs.md) method.
-
-<i class="fa fa-youtube-play youtube" aria-hidden="true"></i>
-For a walkthrough of the integration with GitLab for Jira, watch [Configure GitLab Jira Integration using Marketplace App](https://youtu.be/SwR-g1s1zTo) on YouTube.
-
-1. Go to **Jira Settings > Apps > Find new apps**, then search for GitLab.
-1. Click **GitLab for Jira**, then click **Get it now**, or go to the
-   [App in the marketplace directly](https://marketplace.atlassian.com/apps/1221011/gitlab-com-for-jira-cloud).
-
-   ![Install GitLab App on Jira](img/jira_dev_panel_setup_com_1.png)
-1. After installing, click **Get started** to go to the configurations page.
-   This page is always available under **Jira Settings > Apps > Manage apps**.
-
-   ![Start GitLab App configuration on Jira](img/jira_dev_panel_setup_com_2.png)
-1. If not already signed in to GitLab.com, you must sign in as a user with
-   [Maintainer](../../user/permissions.md) permissions to add namespaces.
-
-   ![Sign in to GitLab.com in GitLab Jira App](img/jira_dev_panel_setup_com_3_v13_9.png)
-1. Select **Add namespace** to open the list of available namespaces.
-
-1. Identify the namespace you want to link, and select **Link**.
-
-   ![Link namespace in GitLab Jira App](img/jira_dev_panel_setup_com_4_v13_9.png)
-
-NOTE:
-The GitLab user only needs access when adding a new namespace. For syncing with
-Jira, we do not depend on the user's token.
-
-After a namespace is added:
-
-- All future commits, branches, and merge requests of all projects under that namespace
-  are synced to Jira.
-- From GitLab 13.8, past merge request data is synced to Jira.
-
-Support for syncing past branch and commit data [is planned](https://gitlab.com/gitlab-org/gitlab/-/issues/263240).
-
-For more information, see [Usage](#usage).
-
-#### Troubleshooting GitLab for Jira
-
-The GitLab for Jira App uses an iframe to add namespaces on the settings page. Some browsers block cross-site cookies. This can lead to a message saying that the user needs to log in on GitLab.com even though the user is already logged in.
-
-> "You need to sign in or sign up before continuing."
-
-In this case, use [Firefox](https://www.mozilla.org/en-US/firefox/) or enable cross-site cookies in your browser.
-
 ## Usage
 
 After the integration is set up on GitLab and Jira, you can: