2 fixes reagarding nashboard

- fixed broken link
- replace duplicate entry,  combined the 2 entries into 1

README.md

@@ -94,14 +94,13 @@ them:
 - [nostr GitHub Action](https://github.com/theborakompanioni/nostr-action) - send events from GitHub Actions
 - [wen](https://github.com/fiatjaf/wen) - browser extension for website enhancer with nostr
 - [nostrefresh](https://github.com/melvincarvalho/nostrefresh) - simple refresh function for nostr web pages
-- [nashboard](https://github.com/vinliao/nashboard) - nostr network statistic
 - [anonroom](https://github.com/vinliao/anonroom) - anonymous chat room inside nostr
 - [nostril](https://github.com/jb55/nostril) - C cli tool for creating nostr events
 - [nostr-rs-relay-compose](https://github.com/vdo/nostr-rs-relay-compose) - a Docker compose deployment for nostr-rs-relay with SSL support based on Traefik
 - [tostr](https://github.com/slaninas/tostr) - a twitter to nostr bot
 - [nostr.com](https://nostr.com/) - a nostr web gateway for viewing events by their ID
 - [nostrandom.netlify.app](https://nostrandom.netlify.app/) - generate publish-able Nostr event with random keys
-- [nashboard](https://nashboard.netlify.app/) - a Nostr network dashboard with network statistics
+- [nashboard](https://github.com/vinliao/nashboard) and [here](https://nashboard.space/) - a Nostr network dashboard with network statistics
 - [nostr army knife](https://nostr-army-knife.netlify.app/) - nostr army knife by fiatjaf
 - [joinstr](https://github.com/1440000bytes/joinstr) - coinjoin implementation using nostr
 - [smtp nostr gateway ](https://github.com/Cameri/smtp-nostr-gateway) - a bridge that forwards emails to pubkeys as encrypted direct messages