more wording for location - closes #73

README.md

@@ -134,9 +134,12 @@ The url for that feed is:  [https://noagendaassets.com/enc/pc20sandbox.xml](http
 
    Item (optional | multiple)
 
-   This element must contain, at minimum, a latlon point and a country code.  Although, an OSM specification is highly recommended.
+   This element must contain, at minimum, a latlon point and a country code.  Although, an OSM specification is highly recommended.  The purpose of this tag is to allow specifying
+   locations relevant to this podcast or episode.  It can be used as simply as a single tag in the channel to show the "home base" of where a podcast is produced.  Or, more thoroughly
+   for a travel podcast to specify locations that were visited during each episode.  Also, a history podcast could reference points of interest discussed.  There are many possible uses.
 
-    - latlon: (required) A latitude/longitude point reflecting the location associated with this show or episode. This could be where it is made, or alternatively a location which features in the podcast.
+    - latlon: (required) A latitude/longitude point reflecting the location associated with this show or episode. This could be where it is made, or alternatively a location which
+                         features in the podcast.
     - osmid: (recommended) From the OpenStreetMap API. If a value is given for osmid it must contain both 'type' and 'id'.
         - osm type: A one-character description of the type of OSM point. Valid is "N" (node); "W" (way); "R" (relation).
         - osm id: The ID of the OpenStreetMap feature that is described. This may be a city or a building. While OSM IDs are not considered permanent, cities rarely disappear.