docs(bin): add badges to bin tools README (#6642)

Author: kingsword09

bin/oay/README.md

@@ -1,5 +1,7 @@
 # Apache OpenDAL™ Oay
 
+[![Build Status]][actions] [![Latest Version]][crates.io] [![Crate Downloads]][crates.io] [![chat]][discord]
+
 [build status]: https://img.shields.io/github/actions/workflow/status/apache/opendal/ci_bin_oay.yml?branch=main
 [actions]: https://github.com/apache/opendal/actions?query=branch%3Amain
 [latest version]: https://img.shields.io/crates/v/oay.svg

bin/ofs/README.md

@@ -1,5 +1,7 @@
 # Apache OpenDAL™ ofs
 
+[![Build Status]][actions] [![Latest Version]][crates.io] [![Crate Downloads]][crates.io] [![chat]][discord]
+
 [build status]: https://img.shields.io/github/actions/workflow/status/apache/opendal/ci_bin_ofs.yml?branch=main
 [actions]: https://github.com/apache/opendal/actions?query=branch%3Amain
 [latest version]: https://img.shields.io/crates/v/ofs.svg

bin/oli/README.md

@@ -1,5 +1,7 @@
 # Apache OpenDAL™ Oli
 
+[![Build Status]][actions] [![Latest Version]][crates.io] [![Crate Downloads]][crates.io] [![chat]][discord]
+
 [build status]: https://img.shields.io/github/actions/workflow/status/apache/opendal/ci_bin_oli.yml?branch=main
 [actions]: https://github.com/apache/opendal/actions?query=branch%3Amain
 [latest version]: https://img.shields.io/crates/v/oli.svg