Add parser-implementations category to crates.io metadata

dtolnay · dtolnay · commit 18ad35295439 · 2022-08-01T00:15:29.000-07:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "syn"
 version = "1.0.98" # don't forget to update html_root_url and syn.json
 authors = ["David Tolnay <dtolnay@gmail.com>"]
-categories = ["development-tools::procedural-macro-helpers"]
+categories = ["development-tools::procedural-macro-helpers", "parser-implementations"]
 description = "Parser for Rust source code"
 documentation = "https://docs.rs/syn"
 edition = "2018"
