Update constants.ts (#14)

change demo location to `https://tangleml-tangle.hf.space/#/quick-start`

Author: maxy-shpfy

constants.ts

@@ -1,7 +1,7 @@
-export const APP_URL = "https://tangleml.github.io/tangle-ui/";
+export const APP_URL = "https://tangleml-tangle.hf.space/#/quick-start";
 export const GITHUB_REPO_URL = "https://github.com/tangleml/tangle";
 export const GITHUB_ISSUES_URL = `${GITHUB_REPO_URL}/issues`;
-export const DEMO_URL = "https://tangleml.github.io/tangle-ui/#/quick-start";
+export const DEMO_URL = "https://tangleml-tangle.hf.space/#/quick-start";
 export const DOCS_URL = "/docs";
 
 export const SLACK_CHANNEL = "#tangle";