Rephrased the sentence in networking-guide
Rephrased the sentence in networking-guide

Change-Id: Ic1229e22c7a2fbc449bb37a0677fb482bf092fcf
Closes-Bug: #1574274

openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals