Fix docs

fhevm-engine/README.md

@@ -38,6 +38,11 @@ Exec into postgresql shell
 docker exec -u postgres -it fhevm-coprocessor-db-1 psql coprocessor
 ```
 
+## Running tests
+```
+cargo test
+```
+
 ## Running the first working fhevm coprocessor smoke test
 
 Reload database and apply schemas from scratch
@@ -47,8 +52,4 @@ make recreate_db
 Run the server and background fhe worker
 ```
 cargo run -- --run-server --run-bg-worker
-```
-In another terminal run the custom function that performs the fhe operation smoke testt
-```
-cargo run -- --run-custom-function
-```
+```