how to add color in text github readme code example

Example 1: how to add color in text github readme

```diff
- text in red
+ text in green
! text in orange
# text in gray
@@ text in purple (and bold)@@
```

Example 2: change text color in md file

  .text-white on .bg-blue


  .text-gray-dark on .bg-blue-light


  .text-white on .bg-red


  .text-red on .bg-red-light


  .text-gray-dark on .bg-green-light


  .text-gray-dark on .bg-yellow


  .text-gray-dark on .bg-yellow-light


  .text-white on .bg-purple


  .text-white on .bg-gray-dark


  .text-gray-dark on .bg-gray

Example 3: change text color in md file

- ![#f03c15](https://via.placeholder.com/15/f03c15/000000?text=+) `#f03c15`
- ![#c5f015](https://via.placeholder.com/15/c5f015/000000?text=+) `#c5f015`
- ![#1589F0](https://via.placeholder.com/15/1589F0/000000?text=+) `#1589F0`