Add 5.6.0

.drone.yml

@@ -0,0 +1,13 @@
+kind: pipeline
+name: default
+
+steps:
+- name: docker
+  image: plugins/docker
+  settings:
+    repo: egraven/tidy-html5
+    username: egraven
+    password:
+      from_secret: DOCKER_TOKEN
+    tags:
+      - '5.6.0'

Dockerfile

@@ -0,0 +1,15 @@
+FROM debian:stable-slim AS builder
+RUN apt-get update -y && \
+	apt-get install -y git cmake make build-essential gcc
+
+WORKDIR /build
+COPY . .
+
+RUN cd build/cmake
+RUN cmake /build -DCMAKE_BUILD_TYPE=Release 
+RUN make
+RUN make install
+
+FROM debian:stable-slim AS runtime
+COPY --from=builder /usr/local/bin/tidy /usr/local/bin/tidy
+ENTRYPOINT [ "/usr/local/bin/tidy" ]