update badge link to wiki

for more information, see https://pre-commit.ci

.github/workflows/go.yml

@@ -29,3 +29,21 @@ jobs:
         run: go build -v ./...
       - name: Test
         run: make test
+  coverage:
+    name: coverage
+    permissions:
+      contents: write
+    concurrency:
+      group: coverage
+    runs-on: ubuntu-latest
+    needs: [build]
+    steps:
+      - name: Update coverage report
+        uses: ncruces/go-coverage-report@v0
+        with:
+          report: true
+          chart: true
+          amend: true
+        if: |
+          github.event_name == 'push'
+        continue-on-error: true

README.md

@@ -1,5 +1,9 @@
 # fatcontext
 
+[![Go Reference](https://pkg.go.dev/badge/github.com/Crocmagnon/fatcontext.svg)](https://pkg.go.dev/github.com/Crocmagnon/fatcontext)
+[![Go Report Card](https://goreportcard.com/badge/github.com/Crocmagnon/fatcontext)](https://goreportcard.com/report/github.com/Crocmagnon/fatcontext)
+[![Go Coverage](https://github.com/Crocmagnon/fatcontext/wiki/coverage.svg)](https://github.com/Crocmagnon/fatcontext/wiki/Coverage)
+
 `fatcontext` is a Go linter which detects potential fat contexts in loops or function literals.
 They can lead to performance issues, as documented here: https://gabnotes.org/fat-contexts/
 

contrib/example.go

@@ -1,21 +0,0 @@
-package contrib
-
-import "context"
-
-func ok() {
-	ctx := context.Background()
-
-	for i := 0; i < 10; i++ {
-		ctx := context.WithValue(ctx, "key", i)
-		_ = ctx
-	}
-}
-
-func notOk() {
-	ctx := context.Background()
-
-	for i := 0; i < 10; i++ {
-		ctx = context.WithValue(ctx, "key", i) // "nested context in loop"
-		_ = ctx
-	}
-}