Add useDebugValue hook snippet and update README

Author: alDuncanson

README.md

@@ -14,6 +14,7 @@ React Hooks Snippets is a [Visual Studio Code](https://code.visualstudio.com/) e
 | `ush` | `useState` |
 | `uth` | `useTransitionHook` |
 | `udvh` | `useDeferredValue` |
+| `udbvh` | `useDebugValue` |
 | `ueh` | `useEffect` |
 | `uleh` | `useLayoutEffect` |
 | `uieh` | `useInsertionEffect` |

snippets/snippets.json

@@ -20,6 +20,13 @@
 		],
 		"description": "React useDeferredValue() hook"
 	},
+	"useDebugValue": {
+		"prefix": "udbvh",
+		"body": [
+			"useDebugValue(${1:value});$0"
+		],
+		"description": "React useDebugValue() hook"
+	},
 	"useEffect": {
 		"prefix": "ueh",
 		"body": [