small addition to ch_basic_environment

added "a" before suitable

Change-Id: I72c53500baf1c2888f2695fad2a85e9b43775793

doc/install-guide/section_basics-queue.xml

@@ -69,11 +69,11 @@
         message broker.</para>
       <note>
         <para>For production environments, you should create a unique account
-          with suitable password. For more information on securing the
+          with a suitable password. For more information on securing the
           message broker, see the
         <link xlink:href="https://www.rabbitmq.com/man/rabbitmqctl.1.man.html"
           >documentation</link>.</para>
-        <para>If you decide to create a unique account with suitable password
+        <para>If you decide to create a unique account with a suitable password
           for your test environment, you must configure the
           <literal>rabbit_userid</literal> and
           <literal>rabbit_password</literal> keys in the configuration file
@@ -90,6 +90,6 @@
         </para>
     </step>
   </procedure>
-  <para>Congratulations, now you are ready to install OpenStack
+  <para>Congratulations, you are now ready to install OpenStack
     services!</para>
 </section>

doc/install-guide/section_neutron-network-node.xml

@@ -307,7 +307,7 @@ verbose = True</programlisting>
         adjust the MTU.</para>
       <note>
         <para>Some cloud images ignore the DHCP MTU option in which case
-          you should configure it using metadata, script, or other suitable
+          you should configure it using metadata, a script, or another suitable
           method.</para>
       </note>
       <substeps>