fixing a typo in CONTRIBUTING.md (#10044)

Author: panpan-lin

CONTRIBUTING.md

@@ -188,7 +188,7 @@ From there use the ```Extension + Debugger``` launch option.
 Information on our coding standards can be found [here](https://github.com/Microsoft/vscode-python/blob/master/CODING_STANDARDS.md).
 We have CI tests to ensure the code committed will adhere to the above coding standards. *You can run this locally by executing the command `npx gulp precommit` or use the `precommit` Task.
 
-Messages displayed to the user must ve localized using/created constants from/in the [localize.ts](https://github.com/Microsoft/vscode-python/blob/master/src/client/common/utils/localize.ts) file.
+Messages displayed to the user must be localized using/created constants from/in the [localize.ts](https://github.com/Microsoft/vscode-python/blob/master/src/client/common/utils/localize.ts) file.
 
 ## Development process