[FAB-10564] Edit Fabric Model topic

Addressed Kostas' comments for edits
on the new private data information
in the fabric model topic

Change-Id: I0c943917a7a5380db1b9cc73cee797417e180528
Signed-off-by: pama-ibm <pama@ibm.com>

Author: pamandrejko

docs/source/fabric_model.rst

@@ -13,8 +13,8 @@ fulfill its promise of a comprehensive, yet customizable, enterprise blockchain
 * :ref:`Ledger-Features` --- The immutable, shared ledger encodes the entire
   transaction history for each channel, and includes SQL-like query capability
   for efficient auditing and dispute resolution.
-* :ref:`Privacy` --- Channels and private data collections enable multi-lateral
-  transactions with the high degrees of privacy and confidentiality required by
+* :ref:`Privacy` --- Channels and private data collections enable private and
+  confidential multi-lateral transactions that are usually required by
   competing businesses and regulated industries that exchange assets on a common
   network.
 * :ref:`Security-Membership-Services` --- Permissioned membership provides a
@@ -115,8 +115,8 @@ a user in possession of the corresponding key that was used to generate the ciph
 text. For further details on chaincode encryption, see the :doc:`chaincode4ade`
 topic.
 
-See the :doc:`private-data-arch` topic for more details on
-how to implement privacy on your blockchain network.
+See the :doc:`private-data-arch` topic for more details on how to achieve
+privacy on your blockchain network.
 
 .. _Security-Membership-Services: