add link to blog to readme

README.md

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 # nostroots: nostrifying trustroots
 
-Trustroots is a social network of travelers and hosts that offer couches. Founded in 2014, 112k+ members now.  We're working on moving this onto nostr, see e.g. https://nostr.net/
+Trustroots is a social network of travelers and hosts that offer couches. Founded in 2014, 112k+ members now.  We're working on moving this onto nostr, see e.g. https://nostr.net/. You can follow our progress on the trustroots blog: https://ideas.trustroots.org/category/nostr/
 
 nostroots is an initiative to seamlessly transition Trustroots, the platform for sharing, hosting, and community building, onto the nostr network. By leveraging the unique decentralized and open-source nature of nostr, nostroots aims to enhance Trustroots' community-focused ethos with greater privacy, security, and user autonomy.