move compat to shared (#311)

* move compat to shared

* remove compat files

Author: terakilobyte

source/compatibility.txt

@@ -17,7 +17,7 @@ The first column lists the driver version.
 
 :ref:`What information does the MongoDB Compatibility table show? <mongodb-compatibility-table-about-node>`
 
-.. include:: /includes/mongodb-compatibility-table-node.rst
+.. sharedinclude:: dbx/mongodb-compatibility-table-node.rst
 
 Language Compatibility
 ----------------------
@@ -28,7 +28,7 @@ The first column lists the driver version.
 
 :ref:`What information does the Language Compatibility table show? <language-compatibility-table-about-node>`
 
-.. include:: /includes/language-compatibility-table-node.rst
+.. sharedinclude:: dbx/language-compatibility-table-node.rst
 
 About Compatibility Tables
 --------------------------