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Codeproject is great for writing and publishing article, github/git is great for hosting code.
Do you ever evaluated some sort of integration?
For example instead of manually uploading a zip file you can provide a way to pull it from a git repo. In this way updating the source code can be really fast and easy.
A similar solution can be provided for article text (a markdown file inside the repository?).
I say this because I hate to always keep up to date my articles on codeproject (cleaning the project, zip it, uploading it, modify the link, ...). Usually I simply put a header that point to the official github repository and I never update it on codeproject.