Github markdown tricks

Use the following markdown on Github to get the following result:

Instead of the arrow keys, you can use <kbd>h</kbd>, <kbd>j</kbd>, <kbd>k</kbd>, <kbd>l</kbd> to navigate 
in vim.

GitHub contribution graph colors: `#FF5733`


\```diff
func main() {
-    fmt.Println!("Hello Wrld")
+    fmt.Println!("Hello World")
\```

<details>
<summary>Click here to see full traceback</summary>
<pre>
Some

very 

long 

traceback
</pre>