-The project is in its early stages: contributions are welcome and
-would be **very** helpful, but the project is not *yet* optimized for
-contribution. Moreover, it is doubly experimental, so there's no
-guarantee that any work here would reach production. That said, here
-are some areas where contributions would be **especially** welcome:
-
-
-* Designing internal data structures: RFC only outlines the
- constraints, it's an open question how to satisfy them in the
- optimal way. See `ARCHITECTURE.md` for current design questions.
-
-* Porting libsyntax parser to rust-analyzer: currently rust-analyzer parses
- only a tiny subset of Rust. This should be fixed by porting parsing
- functions from libsyntax one by one. Take a look at the
- [libsyntax parser](https://github.com/rust-lang/rust/blob/6b99adeb11313197f409b4f7c4083c2ceca8a4fe/src/libsyntax/parse/parser.rs)
- for "what to port" and at the
- [Kotlin parser](https://github.com/JetBrains/kotlin/blob/4d951de616b20feca92f3e9cc9679b2de9e65195/compiler/frontend/src/org/jetbrains/kotlin/parsing/KotlinParsing.java)
- for "how to port".
-
-* Writing validators: by design, rust-analyzer is very lax about the
- input. For example, the lexer happily accepts unclosed strings. The
- idea is that there should be a higher level visitor, which walks the
- syntax tree after parsing and produces all the warnings. Alas,
- there's no such visitor yet :( Would you like to write one? :)
-
-* Creating tests: it would be tremendously helpful to read each of
- libsyntax and rust-analyzer parser functions and crate a small separate
- test cases to cover each and every edge case.
-
-* Building stuff with rust-analyzer: it would be really cool to compile
- rust-analyzer to WASM and add *client side* syntax validation to rust
- playground!
-
-
-Do take a look at the issue tracker.
-
-If you don't know where to start, or have *any* questions or suggestions,
-don't hesitate to chat at [Gitter](https://gitter.im/libsyntax2/Lobby)!
+The project is in its early stages: contributions are welcome and would be
+**very** helpful, but the project is not _yet_ optimized for contribution.
+Moreover, it is doubly experimental, so there's no guarantee that any work here
+would reach production.
+
+To get an idea of how rust-analyzer works, take a look at the [ARCHITECTURE.md](./ARCHITECTURE.md)
+document.
+
+Useful labels on the issue tracker:
+ * [E-mentor](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-mentor)
+ issues have links to the code in question and tests,
+ * [E-easy](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-easy),
+ [E-medium](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-medium),
+ [E-hard](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-hard),
+ labels are *estimates* for how hard would be to write a fix.
+
+There's no formal PR check list: everything that passes CI (we use [bors](https://bors.tech/)) is valid,
+but it's a good idea to write nice commit messages, test code thoroughly, maintain consistent style, etc.