contributing: corrected typos

CONTRIBUTING.md

@@ -8,14 +8,14 @@ cuGraph, and all of RAPIDS in general, is an open-source project where we encour
 If you are ready to contribute, jump right to the [Contribute Code](#code) section.
 
 
-__Style Formating Tools:__
+__Style Formatting Tools:__
 * `clang-format`  version 8.01+
 * `flake8`        version 3.5.0+
 
 
 <a name="issue"></a>
 ## 1) File an Issue for the RAPIDS cuGraph team to work
-To file an issue, go to the RAPIDS cuGraph [issue](https://github.com/rapidsai/cugraph/issues/new/choose) page an select the appropiate issue type.  Once an issue is filed the RAPIDS cuGraph team will evaluate and triage the issue.  If you believe the issue needs priority attention, please include that in the issue to notify the team.
+To file an issue, go to the RAPIDS cuGraph [issue](https://github.com/rapidsai/cugraph/issues/new/choose) page an select the appropriate issue type.  Once an issue is filed the RAPIDS cuGraph team will evaluate and triage the issue.  If you believe the issue needs priority attention, please include that in the issue to notify the team.
 
 ***Bug Report***</pr>
 If you notice something not working please file an issue
@@ -61,12 +61,12 @@ If you need more context on a particular issue, please ask.
 **TL;DR General Development Process**
 1. Read the documentation on [building from source](SOURCEBUILD.md) to learn how to setup, and validate, the development environment
 2. Read the RAPIDS [Code of Conduct](https://docs.rapids.ai/resources/conduct/)
-3. Find or submit an issue to work on (include a comment that you are workign issue)
+3. Find or submit an issue to work on (include a comment that you are working issue)
 4. Fork the cuGraph [repo](#fork) and Code (make sure to add unit tests)!
 5. When done, and code passes local CI, create your pull request (PR)
    1. Update the CHANGELOG.md with PR number - see [Changelog formatting](https://docs.rapids.ai/resources/changelog/)
    2. Ensure that the PR has the proper [tags](PRTAGS.md)
-   3. Ensure the code matches out [style guilde](https://docs.rapids.ai/resources/style/) 
+   3. Ensure the code matches out [style guide](https://docs.rapids.ai/resources/style/) 
 6. Verify that cuGraph CI passes all [status checks](https://help.github.com/articles/about-status-checks/). Fix if needed
 7. Wait for other developers to review your code and update code as needed
 8. Once reviewed and approved, a RAPIDS developer will merge your pull request