- Add shell scripts `contract-compile` and `contract-prove` to KPlutus executable directory.
* Change `Makefile` to do so.
* Add the above scripts.
* Update `README.md` with a draft explanation on how to use the scripts.
- With this PR and #376, assuming the directory structure and files
exlpained in `README.md/Compiling contracts`, one just need to hit
`contract-contract` and `contract-prove` to get one's properties
proven.