Add any blog of yours (preferably technical) to the Blogs directory. Make sure to use most of the markdown features. Here's the link to markdown guide:
https://guides.github.com/features/mastering-markdown/

create an ardu program with 2 buttons allocated to the pin (inconsistency)

• show source: the popup occurs and the error is shown in the config tab (this is ok)
• open source code editor: the popup is shown and immediately removed. The error is not shown in the config tab (this is wrong)