igor -Ry and some other rewording and fixes.

Differential Revision:	https://reviews.freebsd.org/D644
Reviewed by:	wblock
Sponsored by:	Absolight

en_US.ISO8859-1/books/porters-handbook/new-port/chapter.xml

@@ -11,18 +11,18 @@
 
   <title>Making a New Port</title>
 
-  <para>So, you are interested in making your own port or
-    upgrading an existing one?  Great!</para>
+  <para>Interested in making a new port, or upgrading existing ports?
+    Great!</para>
 
   <para>What follows are some guidelines for creating a new port for
-    &os;.  If you want to upgrade an existing port, you should read
-    this and then read <xref linkend="port-upgrading"/>.</para>
+    &os;.  To upgrade an existing port, read
+    this, then read <xref linkend="port-upgrading"/>.</para>
 
-  <para>When this document is not sufficiently detailed, you should
-    refer to <filename>/usr/ports/Mk/bsd.port.mk</filename>, which all
-    port Makefiles include.  Even if you do not hack Makefiles daily,
-    it is well commented, and you will still gain much knowledge from
-    it.  Additionally, you may send specific questions to the
+  <para>When this document is not sufficiently detailed,
+    refer to <filename>/usr/ports/Mk/bsd.port.mk</filename>, which is
+    included by all port <filename>Makefile</filename>s.  Even those
+    not hacking <filename>Makefile</filename>s daily can gain much
+    knowledge from it.  Additionally, specific questions can be sent to the
     &a.ports;.</para>
 
   <note>
@@ -33,7 +33,7 @@
       <filename>/usr/ports/Mk/bsd.port.mk</filename>; the others
       probably ought to be.  Note that this file uses a non-standard
       tab setting: <application>Emacs</application> and
-      <application>Vim</application> should recognize the setting on
+      <application>Vim</application> will recognize the setting on
       loading the file.  Both &man.vi.1; and &man.ex.1; can be set to
       use the correct value by typing
       <command>:set tabstop=4</command> once the file has been