Updated MacPostGIS_Setup (markdown)

MacPostGIS_Setup.md

@@ -5,40 +5,50 @@
 ## Mac PostGIS /  Postgres Setup
 
 After you have installed PostgreSQL and PostGIS you will need to perform further setup before you can begin to use them with mapnik.
+
  * Setup for *Binaries/Frameworks* from [kyngchaos.com](http://www.kyngchaos.com/wiki/software:frameworks).
   * Add the bin and man page directories to your path (assumes bash shell which is default on 10.5).  You may create or append the ~/.profile  with the following:
 
-    #!sh
+```sh
     export PATH=/usr/local/pgsql/bin:$PATH
     export MANPATH=/usr/local/pgsql/man:$MANPATH
+```
+
   * Register your changes
 
-        #!sh
+```sh
    $ source ~/.profile
+```
+
 You should now be able to type the following from any directory and see the man page.
 
-        #!sh
+```sh
     $ man psql
+```
+
   * Create a database.  The installer you used from   [kyngchaos.com](http://www.kyngchaos.com/wiki/software:frameworks) automatically created a Mac OS user on your system named postgres.  Use that user to create a new database user/role and setup the database. (change "gisuser" to your liking) 
 
-        #!sh
+```sh
     $ sudo -u postgres -i
     $ createuser gisuser
     $ createdb -E UTF8 -O gisuser mapnik
     $ createlang plpgsql mapnik
+```
+
   * Alternatively you can run all commands from your normal shell user but use the '-U' flag to call them as the postgres user:
 
-        #!sh
+```sh
     $ createdb -E UTF8 -U postgres <dbname>
     $ createlang plpgsql -U postgres <dbname>
+```
 
   * PostGIS support must be enabled for each database that requires its usage. This is done by feeding the lwpostgis.sql (the enabler script) file to the target database. 
 
-        #!sh
+```sh
     $ psql -d mapnik -f /usr/local/pgsql/share/lwpostgis.sql
     $ psql -d mapnik -f /usr/local/pgsql/share/spatial_ref_sys.sql
     $ echo "ALTER TABLE geometry_columns OWNER TO gisuser; ALTER TABLE spatial_ref_sys OWNER TO gisuser;"  | psql -d mapnik
-
+```
 
  At this point your database should be setup to create a PostGIS table.
 TODO - full example showing PostGIS use.