Fix #208, Add Writing High Quality Code

CONTRIBUTING.md

@@ -12,6 +12,8 @@ So you'd like to contribute to cFS? Below are some guidelines for contributors t
 * [Pull Requests](#pull-requests)
 * [Discussions and Questions](#discussions-and-questions)
 
+[Writing High-Quality Code](#writing-high-quality-code)
+
 [Getting Started](#getting-started)
 
 ## Code of Conduct 
@@ -94,6 +96,27 @@ Follow GitHub's fork-branch-pull request pattern.
 4. The project team will label the issue and evaluate the pull request in the weekly configuration control board (CCB) meeting. For more information, visit [The cFS CCB Process.](https://github.com/nasa/cFS/wiki/The-cFS-CCB-Process)
 5. If the pull request is accepted, it will be merged into cFS.
 
+## Writing High-Quality Code
+
+1. Follow cFS code conventions (formatting, symbol naming, file naming, etc). Do *not* change/reformat existing code, except to address your changes.
+    - The cFS submodules uses the Format Check workflow to ensure users follow the [clang-format-10](https://releases.llvm.org/10.0.0/tools/clang/docs/ClangFormat.html) style. 
+    - The [cFS_IdentifierNamingConvention document](https://github.com/nasa/cFE/blob/main/docs/cFS_IdentifierNamingConvention.md) provides a simple naming convention guide for cFE/cFS for commands and telemetry that simplifies the EDS to ground telemetry and commands database conversion.
+    - The [cFE Application Developers Guide](https://github.com/nasa/cFE/blob/main/docs/cFE%20Application%20Developers%20Guide.md) contains code conventions such as naming conventions for header files. 
+
+2. For any new API's, add unit tests to cover nominal and off-nominal conditions.
+
+3. Add/edit stubs to the unit test codebase for any new/modified functions.
+
+4. For any changes to existing API's, alter the unit tests to cover the changes (and remove tests made irrelevant due to your changes).
+
+5. Review the static code analyses results. 
+    - Push code changes to the appropriate forked repository. 
+    - Go to the Actions tab and enable GitHub Actions Workflow. The CodeQL Analyis and Static Analysis will be triggered for all pushed code. 
+    - Review these workflows for any warnings or errors. 
+    - Once successful, create a pull request. 
+
+For more information on our GitHub Action Workflows, view our [Security Policy](https://github.com/nasa/cFS/security/policy).
+
 ## Getting Started
 Before you begin, search through the open issues in each submodule to ensure that your ticket is relevant, not redundant, nor in conflict with other tickets:
 * [cFS Bundle Issues](https://github.com/nasa/cfs/issues)
@@ -115,4 +138,4 @@ Before you begin, search through the open issues in each submodule to ensure tha
 
 If your bug or feature hasn't been reported or requested before, create a new issue in the appropriate repository. If it you find a similar issue, please add a comment on it with your experience or input.
 
-Please ensure that your name is associated with your github profile before contributing.
+Please ensure that your name is associated with your github profile before contributing.