chore(tests): add test README (#149)

add test README

src/tests/decider-distro-tests-rs/README.md

@@ -0,0 +1,12 @@
+# Decider Tests
+
+To run tests:
+- Install IPFS CLI and run the IPFS daemon using command `ipfs daemon`.
+- Upload tests resources to IPFS `./resources/upload.sh`.
+- Set the path to your IPFS CLI binary `export IPFS_CLI_PATH=<path_to_ipfs_binary>`.
+- To run tests, you may call `cargo nextext run --release`.
+- To see logs, you need to use `--no-caputre` flag.
+
+
+If you want to debug a specific test, you may enable logs using `enable_decider_logs()` function at the start of the test.
+You also can modify `enable_decider_logs` (`tests/utils/mod.rs`) to enable more logs.