[docs] Update readme

Author: gvergnaud

README.md

@@ -18,7 +18,7 @@ with smart type inference.
 </p>
 
 ```ts
-import { match } from 'ts-pattern';
+import { match, P } from 'ts-pattern';
 
 type Data =
   | { type: 'text'; content: string }
@@ -31,9 +31,9 @@ type Result =
 const result: Result = ...;
 
 return match(result)
-  .with({ type: 'error' }, (res) => `<p>Oups! An error occured</p>`)
+  .with({ type: 'error' }, () => `<p>Oups! An error occured</p>`)
   .with({ type: 'ok', data: { type: 'text' } }, (res) => `<p>${res.data.content}</p>`)
-  .with({ type: 'ok', data: { type: 'img' } }, (res) => `<img src=${res.data.src} />`)
+  .with({ type: 'ok', data: { type: 'img', src: P.select() } }, (src) => `<img src=${src} />`)
   .exhaustive();
 ```