fix(docs): compiledCache.get() should only return Promise<string|undefined>

closes #195

Author: Franck Freiburger

docs/api/README.md

@@ -374,7 +374,7 @@ Maybe (not tested), the following libraries may help you to gain more space [pak
 		},
 		get(key) {
 
-			return window.localStorage.getItem(key);
+			return window.localStorage.getItem(key) ?? undefined;
 		},
 	},
 	...

docs/examples.md

@@ -221,7 +221,7 @@ In the following examples, for convenience, we just returns static content as fi
         },
         get(key) {
 
-          return window.localStorage.getItem(key);
+          return window.localStorage.getItem(key) ?? undefined;
         },
       },
 

src/types.ts

@@ -325,7 +325,7 @@ export type Options = {
  *		},
  *		get(key) {
  *	
- *			return window.localStorage.getItem(key);
+ *			return window.localStorage.getItem(key) ?? undefined;
  *		},
  *	},
  *	...