I've recently completed a 6 mo course on Coursera in ML and Analytics. I am looking for examples on how to start writing articles/build portfolio and share my work?

I have a degree in Mechanical Engineering and have been interested in ML for sometime now. I am nearing completion of a program I took on coursera. So I've learned basic EDA, k means klustering , linear /logical regressions , feature reduction, SVM, decision tree, GMM etc.
I want to use my knowledge to share my work on LinkedIn but not sure how to.
Am looking for some tips to get started.

analytics articles course coursera datascience examples portfolio work writing