docs: fix the invalid link in speech_command_recognition

docs/speech_command_recognition/README.md

@@ -60,7 +60,7 @@ Speech commands string need to meet specific formats, as follows:
 
   English speech commands need to be represented by specific phonetic symbols. The phonetic symbols of each word are separated by spaces, such as "turn on the light", which needs to be written as "TkN nN jc LiT".
   
-  **We provide specific conversion rules and tools. For details, please refer to the English G2P [tool](../tool/multinet_g2p.py).**
+  **We provide specific conversion rules and tools. For details, please refer to the English G2P [tool](../../tool/multinet_g2p.py).**
 
 #### 3.2.2 Set speech commands offline
 
@@ -198,4 +198,4 @@ Exit the speech recognition when the return status is `ESP_MN_STATE_TIMEOUT`, it
 ## 5. Other configurations
 
 ### 5.1 Threshold setting 
-    This function is still under development.
+    This function is still under development.

docs/speech_command_recognition/README_cn.md

@@ -65,7 +65,7 @@ MultiNet 对命令词自定义方法没有限制，用户可以通过任意方
   
    英文命令词需要使用特定音标表示，每个单词的音标间用空格隔开，比如“turn on the light”，需要写成“TkN nN jc LiT”。
   
-   **我们提供了具体转换规则和工具，详细可以参考[英文转音素工具](../tool/multinet_g2p.py) 。**
+   **我们提供了具体转换规则和工具，详细可以参考[英文转音素工具](../../tool/multinet_g2p.py) 。**
 
 #### 3.2.2 离线设置命令词