Update execution/README.md

execution/README.md

@@ -142,10 +142,12 @@ Depending on your setup, some additional adjustments may be necessary:
 
 ## Execution
 
-The `./theodolite.sh` is the entrypoint for all benchmark executions. Is has to be called as follows:
+Please note that **Python 3.7** installation is required for executing theodolite.
+
+The `./theodolite.py` is the entrypoint for all benchmark executions. Is has to be called as follows:
 
 ```sh
-./theodolite.sh <use-case> <wl-values> <instances> <partitions> <cpu-limit> <memory-limit> <commit-interval> <duration>
+./theodolite.py <use-case> <wl-values> <instances> <partitions> <cpu-limit> <memory-limit> <commit-interval> <duration>
 ```
 
 * `<use-case>`: Stream processing use case to be benchmarked. Has to be one of `1`, `2`, `3` or `4`.