update admonitions

Author: stephmarie17

source/includes/pymongo-async-experimental.rst

@@ -2,6 +2,6 @@
 
    The {+driver-async+} driver is experimental and should not be used in
    production environments. Classes, methods, and behaviors described in this
-   guide might change prior to the full release. If you encounter any
+   guide might change prior to the production release. If you encounter any
    issues with {+driver-async+}, you can learn how to report them on the
    :ref:`pymongo-issues-help` page.

source/reference/migration.txt

@@ -61,9 +61,11 @@ Migrate From Motor
 
 .. warning:: Motor Deprecation
 
-   Motor will be deprecated one year after the production release of the {+driver-async+}
-   driver. We strongly recommend that Motor users migrate to the {+driver-async+} driver while
-   Motor is still supported.
+   The {+driver-async+} driver is currently experimental and should not be used
+   in production environments.. **Motor will be deprecated one year after the
+   production release of the {+driver-async+} driver.** We strongly recommend
+   that Motor users migrate to the {+driver-async+} driver while Motor is still
+   supported.
 
 The {+driver-async+} driver functions similarly to the Motor library, but allows
 for improved latency and throughput due to directly using Python Asyncio instead