updated examples for advanced content filter

advancedcontentfilter/doc/advancedcontentfilter.md

@@ -34,8 +34,19 @@ If the expression using a post variables returns `true`, the post will be collap
 
 A post will be collapsed if at least one rule matches, but all matching rule names will be displayed above the collapsed content.
 
+## Examples
+
+
+
 ## Expression Syntax
 
+1. To block specific domains  `body matches "/\\.spiegel\\.de/"`
+2. To block everything that contains the words `body matches "/Guten Morgen/"
+3. To block every occurence of the word facebook with a space in front and after the word `body matches "//s facebook/s /"`
+4. To colapse every post that contains more than 1 image `body matches "/(?:(?:(?:\\[url(?:=.*)?\\])?\\[img(?:=.*)?\\].*\\[\\/img\\]\\s*(?:\\[\\/url\\])?)\\s*){2}/"`
+
+
+
 ### Supported Literals
 
 - **strings** - single and double quotes (e.g. `'hello'`).