(DOCSP-48510) [Landing] Update DDP Messaging. (#229)

Author: elyse-mdb

source/index.txt

@@ -19,8 +19,8 @@ MongoDB Documentation
    Whether you're a developer, database administrator, 
    or just starting your journey with MongoDB, our 
    documentation provides you with the information and 
-   knowledge needed to build applications on MongoDB and 
-   the Atlas developer data platform.
+   knowledge needed to build applications on the world's
+   most popular modern database.
 
 .. image:: /images/homepage-hero.svg
    :class: hero-img
@@ -36,8 +36,8 @@ MongoDB Documentation
       :icon: atlas_serverless
       :icon-alt: Atlas icon
 
-      Run MongoDB on a multi-cloud developer data platform that 
-      accelerates and simplifies working with operational data.
+      The modern multi-cloud database that accelerates and simplifies
+      how you build with data.
 
    .. card:: 
       :headline: Database Manual →