DOC-3021: Update plugin documentation for open source and premium plugins

Author: jeslynbo

modules/ROOT/partials/index-pages/opensource-plugins.adoc

@@ -1,181 +1,206 @@
 This section lists the open source plugins provided with {productname}.
 
+== Core Writing & Formatting Tools
+
 [cols="1,1"]
 |===
 
 a|
 [.lead]
-xref:accordion.adoc[Accordion]
+xref:charmap.adoc[Character Map]
 
-Create expandable and collapsible sections.
+Insert special characters into {productname}.
 
 a|
 [.lead]
-xref:anchor.adoc[Anchor]
+xref:directionality.adoc[Directionality]
 
-Insert anchors (sometimes referred to as a bookmarks).
+Toolbar buttons for setting the left-to-right or right-to-left direction of content.
 
 a|
 [.lead]
-xref:autolink.adoc[Autolink]
+xref:emoticons.adoc[Emoticons]
 
-Automatically create hyperlinks.
+Bring a smiley to your content.
 
 a|
 [.lead]
-xref:autoresize.adoc[Autoresize]
+xref:image.adoc[Image]
 
-Automatically resize {productname} to fit content.
+Insert an image into {productname}.
 
 a|
 [.lead]
-xref:autosave.adoc[Autosave]
+xref:insertdatetime.adoc[Insert Date/Time]
 
-Automatically save content in your local browser.
+Insert the current date and/or time into {productname}.
 
 a|
 [.lead]
-xref:charmap.adoc[Character Map]
+xref:link.adoc[Link]
 
-Insert special characters into {productname}.
+Add and edit links in {productname}.
 
 a|
 [.lead]
-xref:code.adoc[Code]
+xref:lists.adoc[Lists]
 
-Edit your content’s HTML source.
+Normalize list behavior between browsers.
 
 a|
 [.lead]
-xref:codesample.adoc[Code Sample]
+xref:advlist.adoc[List Styles]
 
-Insert and embed syntax highlighted code snippets.
+Create styled number and bulleted lists.
 
 a|
 [.lead]
-xref:directionality.adoc[Directionality]
+xref:media.adoc[Media]
 
-Toolbar buttons for setting the left-to-right or right-to-left direction of content.
+Embed and manage HTML5 video and audio elements.
 
 a|
 [.lead]
-xref:emoticons.adoc[Emoticons]
+xref:nonbreaking.adoc[Nonbreaking Space]
 
-Bring a smiley to your content.
+Insert a non-breaking space.
 
 a|
 [.lead]
-xref:fullscreen.adoc[Full Screen]
+xref:pagebreak.adoc[Page Break]
 
-Expand {productname} to fill the entire screen.
+Add a page break.
 
 a|
 [.lead]
-xref:help.adoc[Help]
+xref:table.adoc[Table]
+
+Create and edit tables, including rows, columns, and cell formatting.
+
+|===
 
-Shows the help dialog.
+== Content Structure & Layout Controls
+
+[cols="1,1"]
+|===
 
 a|
 [.lead]
-xref:image.adoc[Image]
+xref:accordion.adoc[Accordion]
 
-Insert an image into {productname}.
+Create expandable and collapsible sections.
 
 a|
 [.lead]
-xref:importcss.adoc[Import CSS]
+xref:anchor.adoc[Anchor]
 
-Automatically populate CSS class names into the Format dropdown.
+Insert anchors (bookmarks) that allow users to link directly to content.
 
 a|
 [.lead]
-xref:insertdatetime.adoc[Insert Date/Time]
+xref:fullscreen.adoc[Full Screen]
 
-Insert the current date and/or time into {productname}.
+Expands the editor to full-screen mode. 
 
 a|
 [.lead]
-xref:link.adoc[Link]
+xref:importcss.adoc[Import CSS]
 
-Add hyperlinks to content.
+Automatically populate CSS class names into the Format dropdown.
 
 a|
 [.lead]
-xref:lists.adoc[Lists]
+xref:preview.adoc[Preview]
 
-Normalize list behavior between browsers.
+Displays a read-only preview of the current content in a separate dialog.
 
 a|
 [.lead]
-xref:advlist.adoc[List Styles]
+xref:quickbars.adoc[Quick Toolbars]
 
-Create styled number and bulleted lists.
+User interface controls to create content faster.
 
 a|
 [.lead]
-xref:media.adoc[Media]
+xref:visualblocks.adoc[Visual Blocks]
 
-Add HTML5 video and audio elements.
+Allow a user to see block level elements such as paragraphs.
 
 a|
 [.lead]
-xref:nonbreaking.adoc[Nonbreaking Space]
+xref:visualchars.adoc[Visual Characters]
+
+See invisible characters such as non-breaking spaces.
 
-Insert a nonbreaking space.
+|===
+
+
+== Code & Technical Editing
+
+[cols="1,1"]
+|===
 
 a|
 [.lead]
-xref:pagebreak.adoc[Page Break]
+xref:code.adoc[Code]
 
-Add a page break.
+Edit the current content’s HTML source.
 
 a|
 [.lead]
-xref:preview.adoc[Preview]
+xref:codesample.adoc[Code Sample]
 
-Show a dialog of the current content in read-only format.
+Insert and embed syntax-highlighted code snippets.
 
 a|
 [.lead]
-xref:quickbars.adoc[Quick Toolbars]
+xref:searchreplace.adoc[Search and Replace]
+
+Find and replace content in {productname}.
+
+|===
+
+== Productivity & Automation
+
+[cols="1,1"]
+|===
 
-User interface controls to create content faster.
 
 a|
 [.lead]
-xref:save.adoc[Save]
+xref:autolink.adoc[Autolink]
 
-Add a save button to the {productname} toolbar.
+Automatically create hyperlinks when a user types a valid URL.
 
 a|
 [.lead]
-xref:searchreplace.adoc[Search and Replace]
+xref:autoresize.adoc[Autoresize]
 
-Find and replace content in {productname}.
+Automatically resize {productname} to fit content.
 
 a|
 [.lead]
-xref:table.adoc[Table]
+xref:autosave.adoc[Autosave]
 
-Table editing features.
+Automatically save content in your local browser.
 
 a|
 [.lead]
-xref:visualblocks.adoc[Visual Blocks]
+xref:help.adoc[Help]
 
-Allow a user to see block level elements such as paragraphs.
+Opens the built-in help dialog.
 
 a|
 [.lead]
-xref:visualchars.adoc[Visual Characters]
+xref:save.adoc[Save]
 
-See invisible characters such as non-breaking spaces.
+Add toolbar button to trigger saving of editor content.
 
 a|
 [.lead]
 xref:wordcount.adoc[Word Count]
 
-Show a word count in the {productname} status bar.
+Show a word count in the {productname} editor status bar.
 
 // Dummy table cell.
 // 1. Remove the inline comment markup pre-pending this