mention that powerlevel10k can be cloned from gitee.com; see #124

README.md

@@ -351,6 +351,13 @@ git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/powerlevel10k
 echo 'source ~/powerlevel10k/powerlevel10k.zsh-theme' >>! ~/.zshrc
 ```
 
+Users in mainland China can use the official mirror on gitee.com for faster download.
+
+```zsh
+git clone --depth=1 https://gitee.com/romkatv/powerlevel10k.git ~/powerlevel10k
+echo 'source ~/powerlevel10k/powerlevel10k.zsh-theme' >>! ~/.zshrc
+```
+
 This is the simplest kind of installation and it works even if you are using a plugin manager. Just
 make sure to disable the current theme in your plugin manager. See
 [troubleshooting](#cannot-make-powerlevel10k-work-with-my-plugin-manager) for help.
@@ -361,6 +368,12 @@ make sure to disable the current theme in your plugin manager. See
 git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/themes/powerlevel10k
 ```
 
+Users in mainland China can use the official mirror on gitee.com for faster download.
+
+```zsh
+git clone --depth=1 https://gitee.com/romkatv/powerlevel10k.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/themes/powerlevel10k
+```
+
 Set `ZSH_THEME="powerlevel10k/powerlevel10k"` in `~/.zshrc`.
 
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