document features

Author: jbr

README.md

@@ -16,10 +16,22 @@
 [version-badge]: https://img.shields.io/crates/v/async-sqlx-session.svg?style=flat-square
 
 ## Installation
-```sh
-$ cargo add async-sqlx-session
+### sqlite: 
+
+```toml
+async-sqlx-session = { version = "0.2.0", features = ["sqlite"] }
+```
+
+### postgres: 
+
+```toml
+async-sqlx-session = { version = "0.2.0", features = ["pg"] }
 ```
 
+
+
+## Cargo Features:
+
 ## Safety
 This crate uses ``#![deny(unsafe_code)]`` to ensure everything is implemented in
 100% Safe Rust.

src/lib.rs

@@ -1,11 +1,8 @@
 //! # async-sqlx-session
 //!
-//! This crate currently only provides a sqlite session store, but
-//! will eventually support other databases as well, configurable
-//! through a feature flag.
-//!
-//! For now, see the documentation for
-//! [`SqliteStore`](crate::SqliteSessionStore)
+//! This crate currently provides two session stores: [`PostgresSessionStore`] and [`SqliteSessionStore`], each of which is enabled by a feature flag.
+//! To use `SqliteSessionStore`, enable the `sqlite` feature on this crate.
+//! To use `PostgresSessionStore`, enable the `pg` feature on this crate.
 #![forbid(unsafe_code, future_incompatible)]
 #![deny(
     missing_debug_implementations,