docs: fix small typo during last rewrite

docs: fix a tiny typo introduced in the last readme commit.

Change-Id: I5ff7c7969616c69b4f93daf38f7362851989b8c2
GitHub-Last-Rev: 68abb69
GitHub-Pull-Request: #209
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/237222
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>

Author: codekidX

README.md

@@ -125,7 +125,7 @@ If you'd like to get early access to new features and bug fixes, you can use the
 
 ## [Contributing](docs/contributing.md)
 
-We welcome your contributions and thank you for working to improve the Go development experience in VS Code. If you would like to help work on the VS Code Go extension, please see our [contribution cuide](docs/contributing.md). It explains how to build and run the extension locally, and it describes the process of sending a contribution.
+We welcome your contributions and thank you for working to improve the Go development experience in VS Code. If you would like to help work on the VS Code Go extension, please see our [contribution guide](docs/contributing.md). It explains how to build and run the extension locally, and it describes the process of sending a contribution.
 
 ## [Code of Conduct](CODE_OF_CONDUCT.md)