docs/concepts: Reference catalog guides in bincompat

Reference bincompat guides in the bincompat concepts page.

Signed-off-by: Razvan Deaconescu <razvand@unikraft.io>

content/docs/concepts/bincompat.mdx

@@ -24,3 +24,11 @@ This is the default build mode for the majority of Linux distributions, so it sh
 Note that, because Linux binaries are included, constructing new Linux binaries requires a Linux or Linux-compatible development environement (such as WSL - _Windows Subsystem for Linux_).
 This is only the case for building binaries -- prebuilt binaries can be used and the ELF loader app itself can be built on multiple platforms (Linux, Windows, macOS).
 </Info>
+
+Binary-compatible apps are located in the Unikraft [application `catalog` repository](https://github.com/unikraft/catalog).
+Follow the guides below to know how to use and develop for the application catalog:
+
+- [Using the Application Catalog](/guides/catalog)
+- [Application Catalog: Behind the Scenes](/guides/catalog-internals)
+- [Application Catalog: Using Firecracker](/guides/catalog-firecracker)
+- [Adding Applications to the Catalog](/guides/catalog-add)