docs: add project links

Author: unix

pages/index.mdx

@@ -58,4 +58,11 @@ but you can also refer to the following examples to try it now:
 - <Link color target="_blank" href="https://github.com/unix/backset/blob/master/examples/quick-start/README.md">Quick start project</Link>
 - <Link color target="_blank" href="https://codesandbox.io/s/backset-quick-start-xj1p9">Quick start on codesandbox</Link>
 
+<Spacer y={3} />
+
+### Others
+
+ - <Link target="_blank" href="https://github.com/unix/backset">View project home page</Link>
+ - <Link target="_blank" href="https://github.com/unix/backset/issues/new">Report an issue</Link>
+
 export default ({ children }) => <Layout meta={meta}>{children}</Layout>