@yariplus So I tried the "npm install nodebb-plugin-markdown@latest" and I got permanent 502 gateway error. Then, I tried deactivate > install markdown from the ACP. In the second attempt, markdown table works. In both cases I saw this.
Hacktoberfest is an annual celebration by Digital Ocean, GitHub, Intel, and DEV Community to promote participation in open source projects, such as NodeBB. All you need to do is submit 4 pull requests within in the month of October!