Fix image reference in custom modes documentation missing image (#102)

* Fix image reference in custom modes documentation

* Remove outdated visual examples from custom modes documentation

Author: hannesrudolph

docs/features/custom-modes.md

@@ -73,10 +73,6 @@ Both global and project-specific configurations use the same JSON format. Each c
 
 ### Understanding File Restrictions
 
-<img src="/img/custom-modes/custom-modes-3.png" alt="File restriction pattern examples" width="600" />
-
-*Visual examples of file restriction patterns and which files they match/don't match.*
-
 The `fileRegex` property uses regular expressions to control which files a mode can edit:
 
 * `\\.md$` - Match files ending in ".md"
@@ -151,7 +147,7 @@ You can find this setting within the prompt settings by clicking the <Codicon na
 2.  **Create New Mode:** Click the <Codicon name="add" /> button to the right of the Modes heading
 3.  **Fill in Fields:**
 
-        <img src="/img/custom-modes/custom-modes-3.png" alt="Custom mode creation interface in the Prompts tab" width="600" />
+        <img src="/img/custom-modes/custom-modes-2.png" alt="Custom mode creation interface in the Prompts tab" width="600" />
         *The custom mode creation interface showing fields for name, slug, save location, role definition, available tools, and custom instructions.*
 
     * **Name:** Enter a display name for the mode