refactor(docs): simplify installation instructions by removing local plugin directory option

Author: ErcinDedeoglu

README.md

@@ -14,8 +14,6 @@ Sync your OpenCode configuration, sessions, and data across multiple machines us
 
 ## Installation
 
-### Option 1: npm package (Recommended)
-
 Add to your `opencode.json` config file:
 
 ```json
@@ -24,26 +22,6 @@ Add to your `opencode.json` config file:
 }
 ```
 
-### Option 2: Local plugin directory
-
-Clone into the global plugins directory:
-
-```bash
-cd ~/.config/opencode/plugins
-git clone https://github.com/ErcinDedeoglu/opencode-sync
-cd opencode-sync
-npm install && npm run build
-```
-
-Or for project-specific installation:
-
-```bash
-cd your-project/.opencode/plugins
-git clone https://github.com/ErcinDedeoglu/opencode-sync
-cd opencode-sync
-npm install && npm run build
-```
-
 ## What Gets Synced
 
 | Category | Data | Default |