Add small polishing touches

plugins/frontend-search/frontend-search.plugin.zsh

+alias angular='frontend angular'
 alias angularjs='frontend angularjs'
 alias aurajs='frontend aurajs'
 alias bem='frontend bem'
@@ -58,9 +59,9 @@ function frontend() {
       print -P "%Uterm%u and what follows is what will be searched for in the %Ucontext%u website,"
       print -P "and %Ucontext%u is one of the following:"
       print -P ""
-      print -P "  angular (>= 2.0), angularjs (1.x), aurajs, bem, bootsnipp, caniuse, codepen, compassdoc, cssflow,"
-      print -P "  dartlang, emberjs, fontello, html5please, jquery, lodash, mdn, npmjs,"
-      print -P "  qunit, reactjs, smacss, stackoverflow, unheap"
+      print -P "  angular (>= 2.0), angularjs (1.x), aurajs, bem, bootsnipp, caniuse, codepen,"
+      print -P "  compassdoc, cssflow, dartlang, emberjs, fontello, html5please, jquery,"
+      print -P "  lodash, mdn, npmjs, qunit, reactjs, smacss, stackoverflow, unheap"
       print -P ""
       print -P "For example: frontend npmjs mocha (or just: npmjs mocha)."
       print -P ""
@@ -74,15 +75,15 @@ function frontend() {
     echo ""
     echo "Valid contexts are:"
     echo ""
-    echo "  angular (>= 2.0), angularjs (1.x), aurajs, bem, bootsnipp, caniuse, codepen, compassdoc, cssflow, "
-    echo "  dartlang, emberjs, fontello, html5please, jquery, lodash, mdn, npmjs,  "
-    echo "  qunit, reactjs, smacss, stackoverflow, unheap"
+    echo "  angular (>= 2.0), angularjs (1.x), aurajs, bem, bootsnipp, caniuse, codepen,"
+    echo "  compassdoc, cssflow, dartlang, emberjs, fontello, html5please, jquery,"
+    echo "  lodash, mdn, npmjs, qunit, reactjs, smacss, stackoverflow, unheap"
     echo ""
     return 1
   fi
 
   # build search url:
-  # join arguments passed with '+', then append to search context URL
+  # join arguments passed with '%20', then append to search context URL
   # TODO substitute for proper urlencode method
   url="${urls[$1]}${(j:%20:)@[2,-1]}"