Added docker run example

dockerfile

@@ -6,7 +6,7 @@ ENV GO111MODULE=on \
     CGO_ENABLED=0
 WORKDIR /build
 # Add the required build libraries
-# Nothing here!
+RUN go install golang.org/x/tools/cmd/goimports@latest
 # Copy and download dependency using go mod
 ADD ./src/go.* /build/
 RUN go mod download

examples/out/model_version_adapted.go

@@ -1,5 +1,8 @@
 package dto
 
+import (
+	"encoding/json"
+)
 type Version struct {
 	// date-time the app has been compiled.
 	BuildDate string `json:"buildDate" validate:"required"`

makefile

@@ -1,5 +1,8 @@
 example:
 	go run main.go ./examples/in/ ./examples/out/
 
+example_container:
+	docker run --rm -v "${PWD}/examples:/examples" gitea.linuxcode.net/linuxcode/oapi-type-definitions-extractor:latest /examples/in /examples/out
+
 lint:
 	docker run --rm -v "${PWD}/src:/src"  golangci/golangci-lint:v1.50 /bin/sh -c "cd /src && golangci-lint run"