to add images to readme file in github code example
Example 1: add image to readme
![alt text](http://url/to/img.png)
Example 2: github readme.md add image
![GitHub Logo](/images/logo.png)
Format: ![Alt Text](url)
Example 3: add image to readme
![alt text](https://github.com/[username]/[reponame]/blob/[branch]/image.jpg?raw=true)