ramsafin/modern-cpp-project-template

AI Summary: The task involves creating a VS Code Dev Container configuration for the provided C++ project. This includes creating a Dockerfile to build a container image with all necessary build tools and dependencies, configuring a `devcontainer.json` file to specify the container image, workspace mounts, extensions, and post-creation commands, and updating the project's README to include instructions on using the Dev Container.

AI Summary: Update the project's README.md to reflect the integration of ccache for faster builds. This involves adding a section (or updating an existing one) to explain that ccache is now used by default and documenting any necessary environment variables for users who might need to configure it.