doc: Language review

doc/src/sgml/libpq.sgml

@@ -925,11 +925,11 @@ postgresql:///mydb?host=localhost&port=5433
    </para>
 
    <para>
-    Connection <acronym>URI</acronym> needs to be encoded with 
+    The connection <acronym>URI</acronym> needs to be encoded with <ulink
-    <ulink url="https://tools.ietf.org/html/rfc3986#section-2.1">Percent-encoding</ulink> 
+    url="https://tools.ietf.org/html/rfc3986#section-2.1">percent-encoding</ulink>
-    if it includes symbols with special meaning in any of its parts. 
+    if it includes symbols with special meaning in any of its parts.  Here is
-    Here is an example where equal sign (<literal>=</literal>) is replaced
+    an example where the equal sign (<literal>=</literal>) is replaced with
-    with <literal>%3D</literal> and whitespace character with
+    <literal>%3D</literal> and the space character with
     <literal>%20</literal>:
 <programlisting>
 postgresql://user@localhost:5433/mydb?options=-c%20synchronous_commit%3Doff