add steps for dev env, and specifics for build + test

CONTRIBUTING.md

@@ -2,6 +2,21 @@
 *This file is incomplete. Feel free to open an issue if there is missing
 information you desire.*
 
+## Dev environment
+
+1. Download and install [rust](https://www.rust-lang.org/tools/install)
+<!-- Specific python version? -->
+2. Download and install python3 and pip
+3. Install `virtualenv`
+4. Run `source ./dev_bootstrap.sh`
+
+## Build and test
+
+1. See docs/installation for more details on building
+2. Run `make` to build scubainit
+3. Run `./ci/test_setup.sh` to build docker images necessary for unit testing
+4. Run `./run_unit_tests.sh`, `static_analysis.sh` and `run_full_tests.py` to test
+
 ## Code Format
 Scuba is compliant with the [Black](https://black.readthedocs.io/)
 code style. Code format in PRs is verified by a GitHub action.