color text in md code example

Example 1: markdown: text size

 This is my text number1 

  This is my text number 2 
 
  This is my text number 3 
 
  This is my text number 4 
 
  This is my text number 5 
 
  This is my text number 6

Example 2: readme.md text color

 Some green text 

Example 3: font size markdown

 This is my text number1 

  This is my text number 2 

Example 4: readme.md text color

```json
   // code for coloring
```
```html
   // code for coloring
```
```js
   // code for coloring
```
```css
   // code for coloring
```
// etc.