Update rendertiddlers.tid (#4635)

core/language/en-GB/Help/rendertiddlers.tid

@@ -6,13 +6,13 @@ description: Render tiddlers matching a filter to a specified ContentType
 Render a set of tiddlers matching a filter to separate files of a specified ContentType (defaults to `text/html`) and extension (defaults to `.html`).
 
 ```
---rendertiddlers <filter> <template> <pathname> [<type>] [<extension>] ["noclean"]
+--rendertiddlers '<filter>' <template> <pathname> [<type>] [<extension>] ["noclean"]
 ```
 
 For example:
 
 ```
---rendertiddlers [!is[system]] $:/core/templates/static.tiddler.html ./static text/plain
+--rendertiddlers '[!is[system]]' $:/core/templates/static.tiddler.html ./static text/plain
 ```
 
 By default, the pathname is resolved relative to the `output` subdirectory of the edition directory. The `--output` command can be used to direct output to a different directory.