zkrunner: update comments

bin/zkrunner/README.md

@@ -27,7 +27,7 @@ Follow the guide in src/sdk/python/README.md to install the Python bindings and
 cd <darkmap>
 zkas proof/set_v1.zk
 ```
-* Open up `zkrunner.py`, provide the path to zkas binary code, witness and assign accordingly.
+* Open up `zkrunner.py`, read over the TODOs and comments, provide the path to zkas binary code, witness and assign accordingly.
 * After installing Python bindings in your Python installation, simply run `python zkrunner.py [--verbose]`.
 
 # Notes

bin/zkrunner/zkrunner.py

@@ -149,8 +149,8 @@ if __name__ == "__main__":
 
     zkcircuit = ZkCircuit(zkbin)
 
-    # TODO: call the corresponding witness_* prefixed method to assign the witness
-    # to the circuit
+    # TODO: call the corresponding witness_* prefixed methods to assign the witness
+    # to the circuit. For a complete list, `rgrep witness_ <darkfi>/src/sdk/python`
     zkcircuit.witness_base(witnesses[0])
     zkcircuit.witness_base(witnesses[1])
     zkcircuit.witness_base(witnesses[2])