update docs

docs/command-reference.md

@@ -208,6 +208,39 @@ task-master add-task --prompt="Description" --priority=high
 ```bash
 # Initialize a new project with Task Master structure
 task-master init
+
+# Initialize a new project applying specific brand rules
+task-master init --rules cursor,windsurf
+```
+
+- The `--rules` flag allows you to specify one or more brand rule sets (e.g., `cursor`, `roo`, `windsurf`) to apply during initialization.
+- If omitted, the default is `cursor`.
+- You can use multiple comma-separated brands in a single command.
+
+**Example:**
+```bash
+task-master init --rules cursor,roo
+```
+
+## Manage Brand Rules
+
+```bash
+# Add brand rule sets to your project
+# (e.g., .roo/rules, .windsurf/rules)
+task-master rules add <brand1,brand2,...>
+
+# Remove brand rule sets from your project
+task-master rules remove <brand1,brand2,...>
+```
+
+- Adding rules creates the brand rules directory (e.g., `.roo/rules`) and copies/initializes the brand's rules.
+- Removing rules deletes the brand rules directory and associated MCP config.
+- You can use multiple comma-separated brands in a single command.
+
+**Examples:**
+```bash
+task-master rules add windsurf,roo
+task-master rules remove windsurf
 ```
 
 ## Configure AI Models