Merge rust-bitcoin/rust-secp256k1#365: Fixed docs(rs)

314e8755df Clarify `global-context` feature (Martin Habovstiak)
d52ab85dd5 Added missing features to docs.rs config (Martin Habovstiak)

Pull request description:

  Sadly, I missed two details in #353: features missing in docs.rs configuration and `global-context` being a bit confusing.
  This PR fixes those, see commit messages for details.

ACKs for top commit:
  apoelstra:
    ACK 314e8755df

Tree-SHA512: 01bed8ae2f30adcbdd436b514f08a084492d7f4e1a739ca62e6d8b8547e379c01faeda3522733c27ab615acbb4c6cff60e13906cc88a0d2b90e439e7da517466

Cargo.toml

@@ -14,7 +14,7 @@ autoexamples = false # Remove when edition 2018 https://github.com/rust-lang/car
 
 # Should make docs.rs show all functions, even those behind non-default features
 [package.metadata.docs.rs]
-features = [ "rand", "rand-std", "serde", "recovery" ]
+features = [ "rand", "rand-std", "serde", "bitcoin_hashes", "recovery", "global-context" ]
 rustdoc-args = ["--cfg", "docsrs"]
 
 [features]

src/context.rs

@@ -10,7 +10,7 @@ use Secp256k1;
 pub use self::alloc_only::*;
 
 #[cfg(feature = "global-context-less-secure")]
-#[cfg_attr(docsrs, doc(cfg(feature = "global-context-less-secure")))]
+#[cfg_attr(docsrs, doc(cfg(any(feature = "global-context", feature = "global-context-less-secure"))))]
 /// Module implementing a singleton pattern for a global `Secp256k1` context
 pub mod global {
     #[cfg(feature = "global-context")]

src/lib.rs

@@ -190,7 +190,7 @@ use core::{mem, fmt, str};
 use ffi::{CPtr, types::AlignedType};
 
 #[cfg(feature = "global-context-less-secure")]
-#[cfg_attr(docsrs, doc(cfg(feature = "global-context-less-secure")))]
+#[cfg_attr(docsrs, doc(cfg(any(feature = "global-context", feature = "global-context-less-secure"))))]
 pub use context::global::SECP256K1;
 
 #[cfg(feature = "bitcoin_hashes")]