Update packages/blockchain/CHANGELOG.md

Co-authored-by: Gabriel Rocheleau <contact@rockwaterweb.com>

packages/blockchain/CHANGELOG.md

@@ -37,7 +37,7 @@ So the Blockchain interface was - falsely - claiming that there would be the pos
 
 We now fixed this by removing the `null` from the interface return values - see PR [#2524](https://github.com/ethereumjs/ethereumjs-monorepo/pull/2524), after exploring the other way around as well (and the reverting), see PR [#2516](https://github.com/ethereumjs/ethereumjs-monorepo/pull/2516).
 
-While this might lead to breaking code constallations on the TypeScript level if this `null` value is picked up we felt this is the right thing to do since this divergence would otherwise continue to "trick" people into assuming and dealing with `null` values for non-existing-block assumptions in their code and continue to produce eventual bugs (we actually fell over this ourselves).
+While this might lead to breaking code installations on the TypeScript level if this `null` value is picked up we felt this is the right thing to do since this divergence would otherwise continue to "trick" people into assuming and dealing with `null` values for non-existing-block assumptions in their code and continue to produce eventual bugs (we actually fell over this ourselves).
 
 A bit on the verge of breaking vs. bug fixing, sorry if you are eventually affected, but we just can't do a single breaking release update for a fix on that level.