feat: add docker image

Author: henri9813

Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3-alpine
+
+WORKDIR /app
+
+COPY . /app
+
+RUN python3 setup.py install
+
+ENTRYPOINT ["/usr/local/bin/seoanalyze"]

README.md

@@ -16,6 +16,12 @@ Installation
 pip3 install pyseoanalyzer
 ```
 
+### Docker
+
+```
+docker run sethblack/python-seo-analyzer [ARGS ...]
+```
+
 Command-line Usage
 ------------------