adding docker

.github/workflows/dockerhub-push.yml

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+# dockerhub-push pushes docker build to dockerhub automatically
+# on the creation of a new release
+name: Publish to Dockerhub on creation of a new release
+on: 
+  release:
+    types: [published]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Publish to Dockerhub Registry
+      uses: elgohr/Publish-Docker-Github-Action@master
+      with:
+        name: projectdiscovery/httpx
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}

Dockerfile

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+FROM golang:1.14-alpine AS build-env
+
+RUN apk add --no-cache --upgrade git openssh-client ca-certificates
+RUN go get -u github.com/golang/dep/cmd/dep
+WORKDIR /go/src/app
+
+# Install
+RUN go get -u github.com/projectdiscovery/httpx/cmd/httpx
+
+ENTRYPOINT ["httpx"]