brush up docs

1 files changed, 12 insertions, 52 deletions

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c952078cf..a2efc7afa 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,58 +1,18 @@
 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:
+would reach production.
 
-- 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.
+To get an idea of how rust-analyzer works, take a look at the [ARCHITECTURE.md](./ARCHITECTURE.md)
+document.
 
-- 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] for "what to port"
-  and at the [Kotlin parser] for "how to port".
+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.
 
-- 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]!
-
-# Code generation
-
-Some of the components of this repository are generated through automatic
-processes. These are outlined below:
-
-- `gen-kinds`: The kinds of tokens are reused in several places, so a generator
-  is used. This process uses [tera] to generate, using data in [grammar.ron],
-  the files:
-  - [ast/generated.rs][ast generated] in `ra_syntax` based on
-    [ast/generated.tera.rs][ast source]
-  - [syntax_kinds/generated.rs][syntax_kinds generated] in `ra_syntax` based on
-    [syntax_kinds/generated.tera.rs][syntax_kinds source]
-
-[libsyntax parser]:
-  https://github.com/rust-lang/rust/blob/6b99adeb11313197f409b4f7c4083c2ceca8a4fe/src/libsyntax/parse/parser.rs
-[kotlin parser]:
-  https://github.com/JetBrains/kotlin/blob/4d951de616b20feca92f3e9cc9679b2de9e65195/compiler/frontend/src/org/jetbrains/kotlin/parsing/KotlinParsing.java
-[gitter]: https://gitter.im/libsyntax2/Lobby
-[tera]: https://tera.netlify.com/
-[grammar.ron]: ./crates/ra_syntax/src/grammar.ron
-[ast generated]: ./crates/ra_syntax/src/ast/generated.rs
-[ast source]: ./crates/ra_syntax/src/ast/generated.tera.rs
-[syntax_kinds generated]: ./crates/ra_syntax/src/syntax_kinds/generated.rs
-[syntax_kinds source]: ./crates/ra_syntax/src/syntax_kinds/generated.tera.rs
+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.