chore: update seed data

store/db/sqlite/seed/10002__memo.sql

@@ -36,8 +36,7 @@ INSERT INTO
 VALUES
   (
     3,
-    "**[Slash](https://github.com/yourselfhosted/slash)**: A bookmarking and url shortener, save and share your links very easily.
-**[TechStack](https://github.com/Get-Tech-Stack/TechStack)**: A browser extension that will display the technology stack of the GitHub repository.",
+    "**[yourselfhosted/slash](https://github.com/yourselfhosted/slash)**: An open source, self-hosted bookmarks and link sharing platform. Save and share your links very easily.",
     101,
     'PUBLIC'
   );

store/db/sqlite/seed/10005__system_setting.sql

+INSERT INTO
+  system_setting (`name`, `value`)
+VALUES
+  ('instance_url', 'https://demo.usememos.com');

store/db/sqlite/seed/10006__resource.sql

+INSERT INTO
+  resource (`creator_id`, `filename`, `external_link`, `type`, `memo_id`)
+VALUES
+  (101, 'slash-demo.png', 'https://github.com/yourselfhosted/slash/blob/main/docs/assets/demo.png?raw=true', 'image/png', 3);