Update source/security.txt

Co-authored-by: kyuan-mongodb <[email protected]>

Author: pierwill

source/security.txt

@@ -21,8 +21,8 @@ Preconfigured Security Features
 ~~~~~
 
 |cloudgov| and databases hosted in |cloudgov-short| use 
-|tls| 1.2 to encrypt connections. This cannot be disabled.
-|tls| versions below 1.2 are not allowed.
+|tls| 1.2 to encrypt connections. This cannot be disabled, 
+and |cloudgov-short| does not allow |tls| versions less than 1.2.
 
 |fips| 140-2
 ~~~~~~~~~~~~