codeblock as a widget and plugin for highlight code blocks

editions/highlightdemo/tiddlers/HelloThere.tid

@@ -7,3 +7,7 @@ The HighlightExample tiddler have fenced blocks of code.
 To add the plugin to your own TiddlyWiki5, just drag this link to the browser window:
 
 [[$:/plugins/tiddlywiki/highlight]]
+
+To add your prefered [[theme|http://highlightjs.org/static/test.html]] append to your:
+
+[[$:/boot/boot.css]]

editions/highlightdemo/tiddlers/HighlightExample.tid

@@ -2,7 +2,7 @@ title: HighlightExample
 
 ''Javascript'' fenced code:
 
-```
+```javascript
 (function(a,b){
     var result = a+b;
     return result;
@@ -11,7 +11,7 @@ title: HighlightExample
 
 ''CSS'' fenced code:
 
-```
+```css
  * { margin: 0; padding: 0; } /* micro reset */
 
 html { font-size: 62.5%; }
@@ -21,7 +21,7 @@ h1   { font-size: 24px; font-size: 2.4rem; } /* =24px */
 
 ''Perl'' fenced code:
 
-```
+```perl
 package Name;
 my $singleton;
 
@@ -49,3 +49,9 @@ class Singleton:
             raise Singleton.__single
         Singleton.__single = self
 ```
+
+''~No-Highlight'' now
+
+```no-highlight
+$ TW5_BUILD_OUTPUT=tmp/ ./bld.sh
+```