DOCSP-42981: fix installation checklist links-v6.0-backport (481) (#484)

# Backport

This will backport the following commits from `master` to `v6.0`:
- [DOCSP-42981: fix installation checklist links
(#481)](10gen/docs-ops-manager#481)

<!--- Backport version: 9.6.0 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

Author: jwilliams-mongo

source/core/installation-checklist.txt

@@ -26,7 +26,11 @@ To install |onprem|:
 
 #. :doc:`Install the Application Database and optional Backup Database </tutorial/prepare-backing-mongodb-instances>`.
 
-#. :doc:`/tutorial/nav/install-application`.
+#. Install |mms| with one of the following methods:
+
+   - :ref:`om-install-rpm`
+   - :ref:`om-install-deb`
+   - :ref:`om-install-archive`
 
    .. note::