update

README.md

@@ -20,16 +20,19 @@ Additionally, we offer three programming languages. MicroPython, C/C++ (Arduino)
 
 <a id="update"></a>
 ## Update:
+2024-01-19:
+- Add more contents
+
 2023-10-11:
- - Primarily revising the app control content.
- - Enhancing some descriptions.
+- Primarily revising the app control content.
+- Enhancing some descriptions.
 
 2023-10-11:
- - Optimize some of the content in the quick guide on Python.
- - Add more chapter descriptions and make some corrections.
+- Optimize some of the content in the quick guide on Python.
+- Add more chapter descriptions and make some corrections.
 
 2023-09-05:
- - Add 1 more example
+- Add 1 more example
 
 
 <a id="trouble"></a>

docs/source/conf.py

@@ -117,5 +117,16 @@
 
     <a href="https://docs.sunfounder.com/projects/robot-hat-v4/en/latest/hardware_introduction.html" target="_blank">Robot HAT</a>
 
+.. |link_german_tutorials| raw:: html
+
+    <a href="https://docs.sunfounder.com/projects/pidog/de/latest/index.html" target="_blank">Deutsch Online-Kurs</a>
+
+.. |link_jp_tutorials| raw:: html
+
+    <a href="https://docs.sunfounder.com/projects/pidog/ja/latest/" target="_blank">日本語オンライン教材</a>
+
+.. |link_en_tutorials| raw:: html
+
+    <a href="https://docs.sunfounder.com/projects/pidog/en/latest/" target="_blank">English Online-tutorials</a>
 
 """

docs/source/index.rst

@@ -8,6 +8,16 @@ SunFounder Raspberry Pi Robot - PiDog
 
 Thank you for choosing our PiDog.
 
+.. note::
+    This document is available in the following languages.
+
+        * |link_german_tutorials|
+        * |link_jp_tutorials|
+        * |link_en_tutorials|
+
+    Please click on the respective links to access the document in your preferred language.
+
+
 PiDog is a Raspberry Pi pet robot with aluminum alloy structure. It can act as a mechanical pet, show cuteness to you, and interact with you.
 
 It is equipped with a camera module, which can perform color recognition, face detection and other projects;