back to single quotes on documentation links

Author: jamesfredley

grails-views-gson/src/main/groovy/grails/plugin/json/view/JsonViewGrailsPlugin.groovy

@@ -37,7 +37,7 @@ class JsonViewGrailsPlugin extends Plugin {
     def profiles = ['web']
 
     // URL to the plugin's documentation
-    def documentation = "https://docs.grails.org/snapshot/guide/theWebLayer.html#gson"
+    def documentation = 'https://docs.grails.org/snapshot/guide/theWebLayer.html#gson'
 
     // Extra (optional) plugin metadata
 

grails-views-markup/src/main/groovy/grails/plugin/markup/view/MarkupViewGrailsPlugin.groovy

@@ -42,7 +42,7 @@ class MarkupViewGrailsPlugin extends Plugin {
     def profiles = ['web']
 
     // URL to the plugin's documentation
-    def documentation = "https://docs.grails.org/snapshot/guide/theWebLayer.html#markup"
+    def documentation = 'https://docs.grails.org/snapshot/guide/theWebLayer.html#markup'
 
     // Extra (optional) plugin metadata