Add aliases to maintained examples

examples/core/README.md

@@ -0,0 +1,22 @@
+# Core example
+
+Run the example from the repository root:
+
+```sh
+go run ./examples/core hello --times=0 --tag=first
+go run ./examples/core ws greet --count=2
+go run ./examples/core ws --help
+go run ./examples/core hello --hlep
+```
+
+The example installs a canonical `workspace greet` command together with a
+command shortcut, a group shortcut, a scoped flag alias, and a global help
+alias. Its declaration slice mixes the canonical group and routing rules as
+`[]commandkit.Declaration`. The handler prints `Invocation.EnteredPath()` and
+`Invocation.CanonicalPath()` so the alternate route and its canonical target
+are visible in the output.
+
+These aliases use the current local CommandKit source. Published CommandKit
+v0.2.0 does not include alias declarations; consumers can use them after the
+next core release. Repository contributors can run its test with
+`go test ./examples/core` from the root.