ci: init

Signed-off-by: oppiliappan <[e-mail]>

.tangled/workflows/ci.yml

···
+when:
+  - event: ["push", "pull_request"]
+    branch: main
+
+engine: nixery
+
+dependencies:
+  nixpkgs:
+    - go
+
+steps:
+  - name: check fmt
+    command: go test -v
+  - name: check test
+    command: test -z "$(gofmt -l .)"

set.go

···
 	return exists
 }
 
-func (s Set[T]) Contains(item T) bool {
+func (s Set[T]) Contains(item T) bool   {
 	_, exists := s.data[item]
 	return exists
 }