There is no way to create multi-line code blocks in a single table cell using bare Markdown syntax – but you can use verbatim HTML to accomplish this. Here is an example two-column table with side-by-side code (note that this HTML goes side-by-side with the rest of your Markdown): # Document Title The usual [Markdown … Read more
Another easy solution is to use the flair feature that’s built into Stack Exchange: Edit your profile Click on “Flair” in the sidebar: Copy the HTML shown on that page and paste it into your README.md By default, flair images look like this: There are options on the flair page for changing the theme as … Read more
You can change the size of an image in GitHub markdown by using the image link in an HTML img tag: From this:  To this: <img src=”https://user-images.githubusercontent.com/link-to-your-image.png” width=”200″ />
This one is actually given as an example by John Gruber himself. You can see from the Markdown documentation that you should write “ ` “ to get `.
Example with the built-in Lua filters: — links-to-html.lua function Link(el) el.target = string.gsub(el.target, “%.md”, “.html”) return el end Then: pandoc -f markdown -t html5 input.md -o output.html –lua-filter=links-to-html.lua
You can create tables using pipes and dashes like this. A | B – | –  |  see GitHub Docs: Organizing information with tables
Two spaces at the end of line are used to insert a line-break. Example (replace the two dots with two spaces!): * Item.. some indented text This will render as: Item some indented text
I have managed to make the font size small in table by using <sub>…</sub> tag. Achieved this by Wrapping each line of text (inside td) under <sub>…</sub>. UPDATED WIKI LINK