fix from @aays

ROADMAP.md

@@ -9,7 +9,7 @@ open. We hope that one day, researchers will conduct their scientific activities
 following open scientific principles not as an active choice but because it is
 the proper and *easier* way of doing science.
 
-To acheive our dream, our mission is to create a highly opinionated, practical,
+To achieve our dream, our mission is to create a highly opinionated, practical,
 and process-oriented manifesto and an accompanying ecosystem of software tools,
 documentation, tutorials, and learning materials, supported by a network of
 practitioners (researchers), that informs researchers on how to conduct open and