docs: fix some typos in networkport documentation

Signed-off-by: NJán Tomko <jtomko@redhat.com>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

docs/formatdomain.html.in

@@ -5310,12 +5310,12 @@
       connections. <span class="since">Since 0.9.4</span>.
     </p>
     <p>
-      When a guest is running and interface of type <code>network</code>
+      When a guest is running an interface of type <code>network</code>
       may include a <code>portid</code> attribute. This provides the UUID
       of an associated virNetworkPortPtr object that records the association
       between the domain interface and the network. This attribute is
       read-only since port objects are create and deleted automatically
-      during startup and shutdown. <span class="since">Since 5.1.0</span>/
+      during startup and shutdown. <span class="since">Since 5.1.0</span>
     </p>
     <p>
       Also, similar to <code>direct</code> network connections

docs/formatnetworkport.html.in

@@ -9,8 +9,8 @@
 
     <p>
       This page provides an introduction to the network port XML format.
-      This stores information about the connection between an virtual
-      interface on a virtual domain's, and the virtual network it is
+      This stores information about the connection between a virtual
+      interface of a virtual domain, and the virtual network it is
       attached to.
     </p>
 
@@ -73,7 +73,7 @@
     <h3><a id="elementsCommon">Common elements</a></h3>
 
     <p>
-      The following elements are common to one of more of the plug
+      The following elements are common to one or more of the plug
       types listed later
     </p>
 
@@ -96,7 +96,7 @@
         The <code>bandwidth</code> element and its child elements are described
         in the <a href="formatnetwork.html#elementQoS">QoS</a> section of
         the Network XML. In addition the <code>classID</code> attribute may
-        exist provide the ID of the traffic shaping class that is active.
+        exist to provide the ID of the traffic shaping class that is active.
       </dd>
       <dt><code>rxfilters</code></dt>
       <dd>The <code>rxfilters</code> element property
@@ -136,7 +136,7 @@
 
     <pre>
   ...
-  &lt;plug type='network' bridge='virbr0'&gt;
+  &lt;plug type='network' bridge='virbr0'/&gt;
   ...</pre>
 
     <p>
@@ -154,7 +154,7 @@
 
     <pre>
   ...
-  &lt;plug type='bridge' bridge='br2'&gt;
+  &lt;plug type='bridge' bridge='br2'/&gt;
   ...</pre>
 
     <p>