More friendly first tip message

src/util.test.ts

@@ -50,7 +50,9 @@ describe("Utility functions", () => {
       if (!("error" in result)) {
         throw new Error("Expected error message not found.");
       }
-      expect(result.error).toMatch("Contributor did not properly post their account address");
+      expect(result.error).toMatch(
+        "Hey 👋, thanks for your contribution. We offer to propose a tip for you to OpenGov",
+      );
     });
 
     test("Throws on invalid network", () => {

src/util.ts

@@ -93,7 +93,14 @@ export function parseContributorAccount(bodys: (string | null)[]): ContributorAc
   }
 
   return {
-    error: `Contributor did not properly post their account address.\n\nMake sure the pull request description (or user bio) has: "{network} address: {address}".`,
+    error: `Hey 👋, thanks for your contribution. We offer to propose a tip for you to OpenGov 🤩
+
+    You can pick between DOT or KSM. Please put either your Polkadot or Kusama address into the Pull Request description or your GitHub bio.
+    The format should be like this: \`{network} address: {address}\`  
+    Just replace \`{network}\` with either ${Object.keys(validNetworks).join(", ")} and \`{address}\` with your actual address.
+
+    You still need to claim the tip after it was approved by OpenGov;
+    please check the [Contributing docs](https://github.com/paritytech/polkadot-sdk/blob/master/docs/contributor/CONTRIBUTING.md#Tip) for help.`,
   };
 }