Updated Spelling config docco to feature Spell Checker Pro

_data/nav.yml

@@ -132,6 +132,8 @@
       - url: "#style_formats_merge"
   - url: "spelling"
     pages:
+    - title: "Spell Checker Pro"
+      url: "#spellcheckerpro"
     - url: "#browser_spellcheck"
     - url: "#gecko_spellcheck"
   - url: "file-image-upload"

_includes/configuration/browser-spellcheck.md

@@ -1,6 +1,8 @@
 ## browser_spellcheck
 
-One of the several spell checking options developers have available is to use the browser's native spell checker. `browser_spellcheck` handles this behavior. `browser_spellcheck` is not available in either Internet Explorer 8 or 9, as neither browser has native spell checker functionality.
+This option configures TinyMCE to use the browser's native spell checker.
+
+`browser_spellcheck` is not available in either Internet Explorer 8 or 9, as neither browser has native spell checker functionality. For more complete browser support, we recommend using [Spell Checker Pro](../../enterprise/check-spelling/).
 
 **Type:** `Boolean`
 

_includes/configuration/spell-checker-pro.md

@@ -0,0 +1,5 @@
+## Spell Checker Pro
+
+TinyMCE Spell Checker Pro is a premium feature that allows spell checking as-you-type and custom dictionary words.
+
+For more information, see [Check Spelling As-You-Type](../../enterprise/check-spelling/) in the Premium Features section.

configure/spelling.md

@@ -2,9 +2,11 @@
 layout: default
 title: Spelling
 description_short:
-description: These settings affect whether the browser's internal spell checker should be used.
+description: TinyMCE spell checking
 ---
 
+{% include configuration/spell-checker-pro.md %}
+
 {% include configuration/browser-spellcheck.md %}
 
 {% include configuration/gecko-spellcheck.md %}