fix typo in README.md

intall -> install

README.md

@@ -108,7 +108,7 @@ Based on CodeGeeX, we also develop free extentions for VS Code and Jetbrains IDE
 For VS Code, search "codegeex" in Marketplace or install it [here](https://marketplace.visualstudio.com/items?itemName=aminer.codegeex). Detailed instructions can be found in 
 [VS Code Extension Guidance](vscode-extension/README.md). For developers, we have also released the source code in [codegeex-vscode-extension](https://github.com/CodeGeeX/codegeex-vscode-extension), please follow [QuickStart](https://github.com/CodeGeeX/codegeex-vscode-extension/blob/main/doc/quickstart.md) to start development.
 
-For Jetbrains IDEs, search "codegeex" in Plugins or intall it [here](https://plugins.jetbrains.com/plugin/20587-codegeex). 
+For Jetbrains IDEs, search "codegeex" in Plugins or install it [here](https://plugins.jetbrains.com/plugin/20587-codegeex). 
 Make sure your IDE version is 2021.1 or later. CodeGeeX now supports IntelliJ IDEA, PyCharm, GoLand, CLion, Android Studio, AppCode, Aqua, DataSpell, DataGrip, Rider, RubyMine, and WebStorm. 
 
 ## CodeGeeX: Architecture, Code Corpus, and Implementation
@@ -218,4 +218,4 @@ If you find our work useful, please cite:
       archivePrefix={arXiv},
       primaryClass={cs.LG}
 }
-```
+```