editorial updates (#191)

* editorial updates

* update

standard/recommendations/core/REC_extent_geospatial_precision.adoc

@@ -2,5 +2,5 @@
 [width="90%",cols="2,6a"]
 |===
 ^|*Recommendation {counter:rec-id}* |*/rec/core/extent_geospatial_precision*
-^|A |Geometry coordinates SHOULD have a level of precision of 2 decimal places.
+^|A |Geometry coordinates SHOULD have a level of precision of 2 or more decimal places.
 |===

standard/sections/clause_7_normative_text.adoc

@@ -368,14 +368,14 @@ The `+additionalExtents.spatial+` property is for other geospatial extents assoc
 The `+additionalExtents.spatial.bbox+` property
 provides the ability to list one to many minimum bounding geometries for a given dataset, where:
 
-* minx is the westernmost coordinate of the limit of the dataset extent, expressed in longitude decimal degrees as a
-signed number between -180 and 180, less than or equal to maxx.
-* miny is the southernmost coordinate of the limit of the dataset extent, expressed in latitude decimal degrees as a
-signed number between -90 and 90, less than or equal to maxy.
-* maxx is the easternmost coordinate of the limit of the dataset extent, expressed in longitude decimal degrees as a
-signed number between -180 and 180, greater than or equal to minx.
-* maxy is the northernmost coordinate of the limit of the dataset extent, expressed in latitude decimal degrees as a
-signed number between -90 and 90, greater than or equal to miny.
+* The minimum longitude is the westernmost coordinate of the limit of the dataset extent, expressed in longitude decimal degrees as a
+signed number between -180 and 180, less than or equal to the maximum longitude.
+* The minimum latitude is the southernmost coordinate of the limit of the dataset extent, expressed in latitude decimal degrees as a
+signed number between -90 and 90, less than or equal to the maximum latitude.
+* The maximum longitude is the easternmost coordinate of the limit of the dataset extent, expressed in longitude decimal degrees as a
+signed number between -180 and 180, greater than or equal to the minimum longitude.
+* The maximum latitude is the northernmost coordinate of the limit of the dataset extent, expressed in latitude decimal degrees as a
+signed number between -90 and 90, greater than or equal to the minumium latitude.
 
 This property also facilitates catalogue searches with geospatial predicate (within extent, etc.).
 
@@ -481,7 +481,7 @@ If necessary, further granularity can be indicated by the `+additionalExtents.te
 ...
 "properties": {
   ...
-  "description": "ICON-EPS 0.5\u00b0 x 0.5\u00b0 regular lat/lon grid, up to +180h every 6h, runs 00/12 UTC, various parameter, various level, various threshold",
+  "description": "ICON-EPS 0.5 deg x 0.5 deg regular lat/lon grid, up to +180h every 6h, runs 00/12 UTC, various parameter, various level, various threshold",
   "themes": [
     {
       "concepts": [