try install markdown-toc globally

.github/workflows/cli.yml

@@ -49,6 +49,7 @@ jobs:
           mkdir -p $GOPATH/bin
           curl -L -o $GOPATH/bin/gfmrun "https://github.com/urfave/gfmrun/releases/download/v1.2.14/gfmrun-$(go env GOOS)-amd64-v1.2.14"
           chmod +x $GOPATH/bin/gfmrun
+          npm install -g markdown-toc
 
       - name: Run Tests
         run: |

build.go

@@ -166,7 +166,7 @@ func TocActionFunc(c *cli.Context) error {
 		filename = "README.md"
 	}
 
-	err := runCmd("npx markdown-toc", "-i", filename)
+	err := runCmd("markdown-toc", "-i", filename)
 	if err != nil {
 		return err
 	}