DOCSP-13255 fix TLS enchange private key

Author: andf-mongodb

source/tutorial/configure-ssl.txt

@@ -49,8 +49,9 @@ Certificate Authorities
 
 When establishing a TLS/SSL connection, the
 :binary:`~bin.mongod`/:binary:`~bin.mongos` presents a certificate key
-file (containing a public key certificate and its associated private
-key) to its clients to establish its identity. [#FIPS]_
+file to its clients to establish its identity. [#FIPS]_ The certificate
+key file contains a public key certificate and its associated private
+key, but only the public component is revealed to the client.
 
 MongoDB can use any valid TLS/SSL certificate issued by a certificate
 authority, or a self-signed certificate. If you use a self-signed