Added README--still some broken links

Author: iquerejeta

fsb/Cargo.toml

@@ -14,6 +14,7 @@ categories = ["cryptography", "no-std"]
 whirlpool = "0.9"
 digest = "0.9"
 block-buffer = { version = "0.9", features = ["block-padding"] }
+opaque-debug = "0.3"
 
 [dev-dependencies]
 hex-literal = "0.3.1"

fsb/README.md

@@ -0,0 +1,58 @@
+# RustCrypto: FSB
+
+<!---
+[![crate][crate-image]][crate-link]
+[![Docs][docs-image]][docs-link]
+[![Build Status][build-image]][build-link]
+-->
+![Apache2/MIT licensed][license-image]
+![Rust Version][rustc-image]
+[![Project Chat][chat-image]][chat-link]
+
+Pure Rust implementation of the [FSB hash function][1] family.
+
+[Documentation][docs-link]
+
+## Minimum Supported Rust Version
+
+Rust **1.41** or higher.
+
+Minimum supported Rust version can be changed in the future, but it will be
+done with a minor version bump.
+
+## SemVer Policy
+
+- All on-by-default features of this library are covered by SemVer
+- MSRV is considered exempt from SemVer as noted above
+
+## License
+
+Licensed under either of:
+
+* [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
+* [MIT license](http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.
+
+[//]: # (badges)
+
+[crate-image]: https://img.shields.io/crates/v/fsb.svg
+[crate-link]: https://crates.io/crates/fsb
+[docs-image]: https://docs.rs/fsb/badge.svg
+[docs-link]: https://docs.rs/fsb/
+[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
+[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
+[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
+[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[build-image]: https://github.com/RustCrypto/hashes/workflows/fsb/badge.svg?branch=master
+[build-link]: https://github.com/RustCrypto/hashes/actions?query=workflow%3Afsb
+
+[//]: # (general links)
+
+[1]: https://www.paris.inria.fr/secret/CBCrypto/index.php?pg=fsb