[processing] improve polar plot algorithm help (fix #16679)

alexbruy · alexbruy · commit 15a5d917706f · 2018-05-16T15:25:55.000+03:00
diff --git a/python/plugins/processing/algs/help/qgis.yaml b/python/plugins/processing/algs/help/qgis.yaml
@@ -327,7 +327,7 @@ qgis:pointstopath:
 qgis:polarplot: >
   This algorithm generates a polar plot based on the value of an input vector layer.
 
-  Two fields must be entered as parameters: one that define the category each feature two (to group features) and another one with the variable to plot (this has to be a numeric one)
+  Two fields must be entered as parameters: one that define the category (to group features) and another one with the variable to plot (this has to be a numeric one)
 
 qgis:poleofinaccessibility: >
   This algorithm calculates the pole of inaccessibility for a polygon layer, which is the most distant internal point from the boundary of the surface. This algorithm uses the 'polylabel' algorithm (Vladimir Agafonkin, 2016), which is an iterative approach guaranteed to find the true pole of inaccessibility within a specified tolerance (in layer units). More precise tolerances require more iterations and will take longer to calculate.
