docs: updated front page

src/lib.rs

@@ -1,10 +1,13 @@
 #![warn(missing_docs)]
-//! A multi-threaded JPEG compression crate, powered by [turbojpeg](https://github.com/honzasp/rust-turbojpeg).
+//! A simple, multi-threaded JPEG compression crate, powered by [turbojpeg](https://github.com/honzasp/rust-turbojpeg).
 //!
-//! This crate provides methods of compressing JPEG images in a single-threaded  or multi-threaded way. Both methods preserves [EXIF](https://en.wikipedia.org/wiki/Exif) data of the original JPEG through [img_parts](https://docs.rs/img-parts/latest/img_parts/) crate.
+//! This crate doesn't give you finer controls over how you compress your JPEGs.
+//! Check out [turbojpeg](https://github.com/honzasp/rust-turbojpeg) for that.
+//!
+//! Provides methods of compressing JPEG images in a single-threaded  or multi-threaded way. Both methods preserves [EXIF](https://en.wikipedia.org/wiki/Exif) data of the original JPEG through [img_parts](https://docs.rs/img-parts/latest/img_parts/) crate.
 //!
 //! [`Single`] is meant for single image compressions.
-//! [`Parallel`] is meant for bulk compressions e.g. compressing a list of image bytes.
+//! [`Parallel`] is meant for bulk compressions e.g. compressing a vector of image bytes.
 //!
 //! As the name implies, [`Single`] is single-threaded whereas [`Parallel`] is multi-threaded.
 //! # Error building `turbojpeg`?