docs: update github syntax of warning (webpack#691)

ersachin3112 · web-flow · commit 1cdbe588cdb8 · 2024-06-10T16:57:18.000+03:00
diff --git a/README.md b/README.md
@@ -802,7 +802,7 @@ module.exports = {
 };
 ```
 
-> **Warning**
+> [!WARNING]
 >
 > [`postcss-preset-env`](https://github.com/csstools/postcss-preset-env) includes [`autoprefixer`](https://github.com/postcss/autoprefixer), so adding it separately is not necessary if you already use the preset. More [information](https://github.com/csstools/postcss-preset-env#autoprefixer)
 
@@ -941,7 +941,7 @@ export default {
 };
 ```
 
-> **Warning**
+> [!WARNING]
 >
 > If you are using Babel you need to do the following in order for the setup to work
 

Original file line number	Diff line number	Diff line change
`@@ -802,7 +802,7 @@ module.exports = {`
`802`	`802`	`};`
`803`	`803`	```
`804`	`804`
`805`		`-> Warning`
	`805`	`+> [!WARNING]`
`806`	`806`	`>`
`807`	`807`	> [`postcss-preset-env`](https://github.com/csstools/postcss-preset-env) includes [`autoprefixer`](https://github.com/postcss/autoprefixer), so adding it separately is not necessary if you already use the preset. More [information](https://github.com/csstools/postcss-preset-env#autoprefixer)
`808`	`808`
`@@ -941,7 +941,7 @@ export default {`
`941`	`941`	`};`
`942`	`942`	```
`943`	`943`
`944`		`-> Warning`
	`944`	`+> [!WARNING]`
`945`	`945`	`>`
`946`	`946`	`> If you are using Babel you need to do the following in order for the setup to work`
`947`	`947`