Contributed to a Github repository
Update: 

Due to a sustained harassment against the owners of the DIY HRT project, the project code base and maintenance has been moved elsewhere. 

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I'm not a frontend engineer and I sure don't enjoy over engineering anything so I was pretty happy to make a small contribution to https://github.com/diyhrt/diyhrt.github.io repository.

I made a simple change so that the navbar does not need to be modified on every webpage on a non template generated site.

See the PR here: https://github.com/diyhrt/diyhrt.github.io/pull/6