fix: update workflow section in README for clarity and correct numbering

README.md

@@ -28,7 +28,7 @@
 2. 在 `.gitea/workflows` 資料夾中建立 `ai-review.yaml'
 3. 在 `ai-review.yaml` 中填入以下內容(選擇一個使用)：
 
-### 1. OpenAI（OpenRouter）
+### 1. OpenAI
 ```yaml
 name: AI
 on:
@@ -42,9 +42,29 @@ jobs:
     - name: AI Code Review
       uses: https://gitea.jsc.idv.tw/jiantw83/code-review@${{ vars.ACTION_CODE_REVIEW_VERSION }}
       with:
-        # Github (h3285@evertrust.com.tw)
-        # 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
         OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        OPENAI_BASE_URL: https://api.openai.com/v1
+    permissions:
+      contents: write
+      pull-requests: write
+      issues: write
+```
+
+### 2. OpenRouter
+```yaml
+name: AI
+on:
+  pull_request:
+    types: [opened, synchronize]
+jobs:
+  code-review:
+    name: 'Code Review'
+    runs-on: ubuntu
+    steps:
+    - name: AI Code Review
+      uses: https://gitea.jsc.idv.tw/jiantw83/code-review@${{ vars.ACTION_CODE_REVIEW_VERSION }}
+      with:
+        OPENAI_API_KEY: ${{ secrets.OPENROUTER_API_KEY }}
         OPENAI_BASE_URL: https://openrouter.ai/api/v1
     permissions:
       contents: write
@@ -52,7 +72,7 @@ jobs:
       issues: write
 ```
 
-### 2. Anthropic Claude
+### 3. Anthropic Claude
 ```yaml
 name: AI
 on:
@@ -74,7 +94,7 @@ jobs:
       issues: write
 ```
 
-### 3. Google Gemini
+### 4. Google Gemini
 ```yaml
 name: AI
 on:
@@ -96,7 +116,7 @@ jobs:
       issues: write
 ```
 
-### 4. Amazon Q
+### 5. Amazon Q
 ```yaml
 name: AI
 on:
@@ -118,7 +138,7 @@ jobs:
       issues: write
 ```
 
-### 5. SonarQube
+### 6. SonarQube
 ```yaml
 name: AI
 on: