fix blanks, update docs

Author: tomkralidis

README.md

@@ -123,7 +123,7 @@ Adding an output metadata schemas to pygeometa involves extending
 `pygeometa.schemas.base.BaseOutputSchema` and supporting the `write`
 function to return a string of exported metadata content.  If you are using
 Jinja2 templates, see the next section.  If you are using another means of
-generating metadata (lxml, xml.etree, json, etc.), override the ABS `write`
+generating metadata (lxml, xml.etree, json, etc.), override the ABC `write`
 class to emit a string using your tooling/workflow accordingly.  See the
 below sections for examples.
 

docs/content/tutorial.md

@@ -136,7 +136,7 @@ Adding an output metadata schemas to pygeometa involves extending
 `pygeometa.schemas.base.BaseOutputSchema` and supporting the `write`
 function to return a string of exported metadata content.  If you are using
 Jinja2 templates, see the next section.  If you are using another means of
-generating metadata (lxml, xml.etree, json, etc.), override the ABS `write`
+generating metadata (lxml, xml.etree, json, etc.), override the ABC `write`
 class to emit a string using your tooling/workflow accordingly.  See the
 below sections for examples.
 

pygeometa/schemas/iso19139/main.j2

@@ -239,7 +239,7 @@
       {% endfor %}
       <gmd:resourceConstraints>
         <gmd:MD_LegalConstraints>
-          {{ cs.get_freetext('useLimitation', record.get('metadata',{}).get('language_alternate'), get_charstring(record['identification'].get('rights'), record.get('metadata',{}).get('language'), record.get('metadata',{}).get('language_alternate'))) }}           
+          {{ cs.get_freetext('useLimitation', record.get('metadata',{}).get('language_alternate'), get_charstring(record['identification'].get('rights'), record.get('metadata',{}).get('language'), record.get('metadata',{}).get('language_alternate'))) }}
           <gmd:accessConstraints>
             <gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeSpace="ISOTC211/19115" codeListValue="{{ record['identification']['accessconstraints'] }}">{{ record['identification']['accessconstraints'] }}</gmd:MD_RestrictionCode>
           </gmd:accessConstraints>