manifest: Move package.metadata

As we do in `rust-bitcoin` put the `package.metadata` config down
belov `dev-dependencies`. Justification is that its not that
meaningful so throw it down out the way.

Author: tcharding

Cargo.toml

@@ -13,10 +13,6 @@ edition = "2021"
 rust-version = "1.63.0"
 exclude = ["tests", "contrib"]
 
-[package.metadata.docs.rs]
-all-features = true
-rustdoc-args = ["--cfg", "docsrs"]
-
 [features]
 default = ["std"]
 std = ["alloc", "secp256k1-sys/std", "rand?/std", "rand?/std_rng", "rand?/thread_rng"]
@@ -48,6 +44,10 @@ serde_test = "1.0.19"
 bincode = "1.3.3"
 hex_lit = "0.1.1"
 
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+
 [target.wasm32-unknown-unknown.dev-dependencies]
 wasm-bindgen-test = "0.3"
 getrandom = { version = "0.3", features = ["wasm_js"] }