(DOCSP-10684)(DOCSP-10686): Emphasize Atlas in intro & install (#114)

* (DOCSP-10684): Update intro to focus on Atlas

* (DOCSP-10686): De-emphasize OM in install

* Cleanup

* Copy review

Author: melissamahoney-mongodb

source/index.txt

@@ -14,10 +14,11 @@
    :depth: 1
    :class: singlecol
 
-The {+mcli-long+} is a tool for managing your MongoDB cloud services,
-like |service-fullname|, |cloud|, and |mms-full|. With the {+mcli+}, you
-can quickly interact with your MongoDB deployments from the command line
-for easier testing and scripting.
+The {+mcli-long+} allows you to create and manage MongoDB Cloud
+deployments with |service-fullname|. You can also use the {+mcli+} to
+manage your on-premises MongoDB environments with |cloud| and
+|mms-full|. With the {+mcli+}, you can quickly interact with MongoDB
+services from the command line for easier testing and scripting.
 
 :ref:`mcli-install`
   Install the {+mcli+} by using GitHub or downloading a binary.

source/install.txt

@@ -17,7 +17,13 @@ Install the {+mcli+}
 .. include:: /includes/styles/corrections.rst
 
 You can use the {+mcli-long+} to deploy and manage MongoDB clusters in
-|service|, |cloud|, and |onprem|.
+|service|, |cloud-short|, and |onprem|.
+
+.. admonition:: Ops Manager Compatibility
+   :class: note
+
+   {+mcli+} is compatible with :opsmgr:`Ops Manager v4.2.0
+   </release-notes/application/#onprem-server-4-2-0>` and later.
 
 To install the {+mcli+}, choose one of the following methods:
 
@@ -27,32 +33,9 @@ To install the {+mcli+}, choose one of the following methods:
 
 |
 
-.. tabs::
-
-   .. tab:: Homebrew
-      :tabid: Homebrew
-
-   .. tab:: Download Binary
-      :tabid: download-binary
-
-   .. tab:: Clone Repository
-      :tabid: clone-repo
-
-
-.. _mcli-install-considerations:
-
-Considerations
---------------
-
-|onprem| Compatibility
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-{+mcli+} is compatible with :opsmgr:`Ops Manager v4.2.0 </release-notes/application/#onprem-server-4-2-0>` and later.
-
 .. _mcli-install-prereqs:
 
 .. tabs::
-   :hidden:
 
    .. tab:: Homebrew
       :tabid: Homebrew