(DOCSP-38876) Updates MacOS compatibility (#361)

Author: sarahsimpers

source/compatibility.txt

@@ -10,6 +10,10 @@ Check Compatibility
    :depth: 1
    :class: singlecol
 
+.. facet::
+   :name: genre
+   :values: reference
+
 The {+atlas-cli+} supports the following operating 
 systems:
 
@@ -26,7 +30,7 @@ systems:
      - 10, 11, 12
      - ``x86-64``, ``ARM``
    * - MacOS
-     - 10.0 and later
+     - 12.0 and later
      - ``x86-64``, ``ARM``
    * - Microsoft Windows
      - 10