Index: en_US.ISO8859-1/books/porters-handbook/porting-samplem/chapter.xml
===================================================================
--- en_US.ISO8859-1/books/porters-handbook/porting-samplem/chapter.xml
+++ en_US.ISO8859-1/books/porters-handbook/porting-samplem/chapter.xml
@@ -49,6 +49,9 @@
 [section for distributed patches -- can be empty]
 PATCH_SITES=	ftp://ftp.sra.co.jp/pub/X11/japanese/
 PATCHFILES=	xdvi-18.patch1.gz xdvi-18.patch2.gz
+[If the distributed patches were not made relative to ${WRKSRC},
+ this may need to be tweaked]
+PATCH_DIST_STRIP=	-p1
 
 [maintainer; *mandatory*!  This is the person who is volunteering to
  handle port updates, build breakages, and to whom a users can direct
@@ -65,22 +68,29 @@
 [dependencies -- can be empty]
 RUN_DEPENDS=	gs:print/ghostscript
 
-[this section is for other standard bsd.port.mk variables that do not
+[If it requires GNU make, not /usr/bin/make, to build add gmake,
+If it is an X application and requires "xmkmf -a" to be run add imake]
+USES=	gmake imake
+USE_GITHUB=	yes
+GH_ACCOUNT=	example
+
+[this section is for other standard bsd.port.mk variables that do not]
  belong to any of the above]
 [If it asks questions during configure, build, install...]
-IS_INTERACTIVE=	yes
+IS_INTERACTIVE= yes
 [If it extracts to a directory other than ${DISTNAME}...]
 WRKSRC=		${WRKDIR}/xdvi-new
-[If the distributed patches were not made relative to ${WRKSRC},
- this may need to be tweaked]
-PATCH_DIST_STRIP=	-p1
 [If it requires a "configure" script generated by GNU autoconf to be run]
 GNU_CONFIGURE=	yes
-[If it requires GNU make, not /usr/bin/make, to build...]
-USES= gmake
-[If it is an X application and requires "xmkmf -a" to be run...]
-USES= imake
 [et cetera.]
+
+[If it requires options, this section is for options]
+OPTIONS_DEFINE=	DOCS EXAMPLES FOO
+OPTIONS_DEFAULT=	FOO
+
+FOO_DESC=		Enable foo support
+
+FOO_CONFIGURE_ENABLE=	foo
 
 [non-standard variables to be used in the rules below]
 MY_FAVORITE_RESPONSE=	"yeah, right"