Updated README.md.

README.md

@@ -1,2 +1,28 @@
 # minigraf
-A tiny, portable GraphQL engine.
+A tiny, portable GraphQL engine. **W.I.P.**
+
+## Purpose
+This project was started to (in order):
+- Learn Rust,
+- Learn how to write a parser,
+- Learn GraphQL,
+- Possibly create a borderline useful tool in the process.
+
+## Scope
+Minigraf will be designed to run in multiple environments, including:
+- As a standalone binary,
+- As a library,
+- As a WebAssembly module (for browsers).
+
+## Anti-Scope
+Mingraf will **NOT** be designed to be (for now):
+- Distributed,
+- Fault-tolerant,
+- ACID-compliant.
+
+## Features
+Minigraf will support multiple backends to store its data, including:
+- In-memory,
+- IndexedDB (browser only),
+- SQLite,
+- One of more embedded KV stores (such as LevelDB or RocksDB).