chore: fix links

ARCHITECTURE.md

@@ -48,7 +48,7 @@ Put extra debugging variables behind [`#[cfg(debug_assertions)]` conditional-com
 
 To keep the library size small and keep ownership of all of the relevant logic.
 
-I chose not to use the excellent [`regex` crate](https::github.com/rust-lang/regex) since:
+I chose not to use the excellent [`regex` crate](https://github.com/rust-lang/regex) since:
 
 1. writing the parsers as pure functions avoids issues of [cross-thread resource contention](https://docs.rs/regex/latest/regex/#sharing-a-regex-across-threads-can-result-in-contention).
 1. I _think_ `regex` relies on pointer-sized offsets for capture groups, which cancels out the short-length optimizations. A scan through the `regex` and `regex-automata` docs and issues didn't reveal a way to use `u8`s .

README.md

@@ -3,8 +3,10 @@
 A docker/OCI image reference parser.
 
 [![Crates.io](https://img.shields.io/crates/v/container_image_dist_ref.svg)](https://crates.io/crates/container_image_dist_ref)
+[![docs.rs](https://img.shields.io/docsrs/container_image_dist_ref)](https://docs.rs/container_image_dist_ref/latest/container_image_dist_ref/)
 
 This library is extensively tested against the authoritative image reference implementation, https://github.com/distribution/reference.
+`distribution/reference` uses the following [EBNF](https://www.w3.org/TR/xml11/#sec-notation) grammar:
 
 <!-- {{{sh cat ./grammars/reference.ebnf }}}{{{out skip=2 -->
 
@@ -33,6 +35,8 @@ identifier           ::= [a-f0-9]{64}
 
 <!-- }}} skip=2 -->
 
+(This is translated from [https://github.com/distribution/reference/blob/main/reference.go](https://github.com/distribution/reference/blob/main/reference.go#L4-L26))
+
 ## Motivation
 
 <!-- TODO: rewrite -->

tests/fixtures/README.md

@@ -1,4 +1,4 @@
 These fixtures are copied from the https://github.com/distribution/reference repo.
 As such, the test cases are governed by the Apache-2 license at https://github.com/distribution/reference/blob/main/LICENSE.
 
-[./inputs.txt](./inputs.txt) is drawn from https://github.com/distribution/reference/blob/main/reference_test.go
+[./references/valid/inputs.txt](./references/valid/inputs.txt) and [./references/valid/inputs.txt](./references/invalid/inputs.txt) are drawn from https://github.com/distribution/reference/blob/main/reference_test.go