Update README.rst

Co-authored-by: Marios Trivyzas <5058131+matriv@users.noreply.github.com>

Author: amotl

README.rst

@@ -66,7 +66,7 @@ will find that the newer releases ``crate>=1.0.0`` no longer include the
 SQLAlchemy dialect for CrateDB.
 
 See `migrate to sqlalchemy-cratedb`_ for relevant guidelines about how to
-conclude the migration to the `sqlalchemy-cratedb`_ package.
+successfully migrate to the `sqlalchemy-cratedb`_ package.
 
 
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