README.md: update information about subprojects

README.md

@@ -6,25 +6,32 @@ This project contains the following subprojects:
 
 * `project-loader` – a library for command-line utilities providing a function to load MPS with specified plugins and
   macros, and execute code in the context of a running MPS instance, optionally with a particular project open.
+* `execute` - a command line tool to execute a piece of code from an MPS module with a particular project open.
 * `execute-generators` – a command line tool to execute the MPS generator on given models.
+* `launcher` - a Gradle plugin for configuring the Java toolchain and command line arguments for a particular version
+  of MPS.
 * `modelcheck` – a command line tool to check given models or modules for errors.
-* `integration-tests` – tests that exercise `execute-generators` and `modelcheck` on sample projects.
+* `remigrate` - a command line tool to run re-runnable migrations on a project (or multiple projects).
+* `integration-tests` – tests that exercise the command line tools on sample projects.
 
-The command-line tools are documented in their respective README.md files:
+The subprojects are documented in their respective README.md files:
 
+* [`execute`](execute/README.md)
 * [`execute-generators`](execute-generators/README.md)
+* [`launcher`](launcher/README.md)
 * [`modelcheck`](modelcheck/README.md)
+* [`remigrate`](remigrate/README.md)
 
 ## Relationship to `mbeddr/mps-gradle-plugin`
 
-This project was extracted from [`mbeddr/mps-gradle-plugin`](https://github.com/mbeddr/mps-gradle-plugin) using
-[`git-filter-repo`](https://github.com/newren/git-filter-repo) to keep Git commit history.
+This project was originally extracted from [`mbeddr/mps-gradle-plugin`](https://github.com/mbeddr/mps-gradle-plugin)
+using [`git-filter-repo`](https://github.com/newren/git-filter-repo) to keep Git commit history.
 
-The new project will use a different versioning scheme. The original project published separate versions for each MPS
-major release (20xx.y). This project will strive to support multiple MPS versions from one code base and will use
-semantic versioning instead.
+## Versioning
+
+This project strives to support multiple MPS versions from one code base and uses semantic versioning.
 
 ## Supported MPS versions
 
-The current version supports MPS 2021.3 to MPS 2022.3. It may work with earlier or later MPS versions but is not tested
-with them.
+See `SUPPORTED_MPS_VERSIONS` in the [integration tests](integration-tests/build.gradle.kts#L24) for a list of supported
+MPS versions.