Update .changelog/v0.20.0/summary.md

Co-authored-by: Alexander Simmerl <a.simmerl@gmail.com>

.changelog/v0.20.0/summary.md

@@ -12,7 +12,7 @@ operational ones).
 The `tendermint-p2p` crate is still undergoing significant expansion (thanks to
 @xla and @melekes!). A lot's been done and we're in the process of finalizing
 this new architecture, which will form the basis for future work towards
-building a Tendermint full node/validator in Rust. More on this in future
+building more Tendermint nodes in Rust. More on this in future
 releases.
 
 Other than that, this release mainly contains various small bug fixes,