add version dependency information to README
@@ -26,6 +26,8 @@ considered ready for merging into master, among them:
* Greatly reducing the number of instructions used to compile disjunctives
* Storing short atoms to heap cells without writing them to the atom table
+The rebis-dev branch should be built with **Rust 1.57 and up**.
+
## Phase 1
Produce an implementation of the Warren Abstract Machine in Rust, done
