markdown put image code example
Example 1: how to insert an image in markdown
![image info](./pictures/image.png)
Example 2: markdown embed image
![Image of Yaktocat](https://octodex.github.com/images/yaktocat.png)
Example 3: add image in markdown
![alternative text](image_name.png "Image Title")
Example 4: markdown image
![plot](./directory_1/directory_2/.../directory_n/plot.png)