minor typo fix

Author: wing328

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,7 +3,7 @@
 - [ ] Read the [contribution guidelines](https://github.com/swagger-api/swagger-codegen/blob/master/CONTRIBUTING.md).
 - [ ] Ran the shell script under `./bin/` to update Petstore sample so that CIs can verify the change. (For instance, only need to run `./bin/{LANG}-petstore.sh` and `./bin/security/{LANG}-petstore.sh` if updating the {LANG} (e.g. php, ruby, python, etc) code generator or {LANG} client's mustache templates). Windows batch files can be found in `.\bin\windows\`.
 - [ ] Filed the PR against the correct branch: `3.0.0` branch for changes related to OpenAPI spec 3.0. Default: `master`.
-- [ ] Copied the [technical committee](https://github.com/swagger-api/swagger-codegen/#swagger-codegen-technical-committee) to review the pull request if your PR is targeting a particular programming langauge.
+- [ ] Copied the [technical committee](https://github.com/swagger-api/swagger-codegen/#swagger-codegen-technical-committee) to review the pull request if your PR is targeting a particular programming language.
 
 ### Description of the PR