DOCSP-50382 Update all preview callouts to link to new preview info page (#35)

Author: kanchana-mongodb

source/includes/static-containers-beta.rst

@@ -2,5 +2,7 @@
 
    To enable the Public Preview of static containers, 
    which improve and simplify security, see :ref:`static-containers`. 
-   We don't recommend using this feature in production while it's in Public Preview. 
+   We don't recommend using this feature in production while it's 
+   in Public Preview. To learn more, see `Preview Features 
+   <https://www.mongodb.com/docs/preview-features/>`__.