Doc: Update README project counts (#643)

Run `./utilities/update-readme.sh` and commit updated project
counts for GitHub badges.

Signed-off-by: Tom Birdsong <tbirdsong@nvidia.com>

README.md

@@ -5,8 +5,8 @@
 ![Metadata](https://img.shields.io/github/actions/workflow/status/nvidia-holoscan/holohub/check_metadata.yml?branch=main&label=Metadata
 )
 
-[![Applications](https://img.shields.io/badge/Applications-87-59A700)](https://github.com/nvidia-holoscan/holohub/tree/main/applications)
-[![Operators](https://img.shields.io/badge/Operators-41-59A700)](https://github.com/nvidia-holoscan/holohub/tree/main/operators)
+[![Applications](https://img.shields.io/badge/Applications-91-59A700)](https://github.com/nvidia-holoscan/holohub/tree/main/applications)
+[![Operators](https://img.shields.io/badge/Operators-42-59A700)](https://github.com/nvidia-holoscan/holohub/tree/main/operators)
 [![Tutorials](https://img.shields.io/badge/Tutorials-12-59A700)](https://github.com/nvidia-holoscan/holohub/tree/main/tutorials)
 
 This is a central repository for the NVIDIA Holoscan AI sensor processing community to share reference applications, operators, tutorials and benchmarks. We invite users and developers of the Holoscan platform to reuse and contribute to this repository.