Change the documentation style.

Dockerfile

@@ -1,6 +1,7 @@
 FROM debian:9-slim
 
 
+# Define image metadata
 LABEL maintainer="inf_sfb1288@lists.uni-bielefeld.de"
 
 
@@ -15,8 +16,6 @@ RUN apt-get update \
       setuptools \
       wheel
 
-
-# pyFlow
 ENV PYFLOW_VERSION=1.1.20
 ADD "https://github.com/Illumina/pyflow/releases/download/v${PYFLOW_VERSION}/pyflow-${PYFLOW_VERSION}.tar.gz" .
 RUN tar -xzf "pyflow-${PYFLOW_VERSION}.tar.gz" \
@@ -27,7 +26,6 @@ RUN tar -xzf "pyflow-${PYFLOW_VERSION}.tar.gz" \
       "pyflow-${PYFLOW_VERSION}" \
       "pyflow-${PYFLOW_VERSION}.tar.gz"
 
-# spaCy
 ENV SPACY_MODELS_DE=de_core_news_sm \
     SPACY_MODELS_EL=el_core_news_sm \
     SPACY_MODELS_EN=en_core_web_sm \
@@ -48,8 +46,11 @@ RUN pip3 install \
       "https://github.com/explosion/spacy-models/releases/download/${SPACY_MODELS_NL}-${SPACY_VERSION}/${SPACY_MODELS_NL}-${SPACY_VERSION}.tar.gz" \
       "https://github.com/explosion/spacy-models/releases/download/${SPACY_MODELS_PT}-${SPACY_VERSION}/${SPACY_MODELS_PT}-${SPACY_VERSION}.tar.gz"
 
+
+# Install NLP pipeline
 COPY nlp /usr/local/bin
 COPY spacy_nlp /usr/local/bin
 
+
 ENTRYPOINT ["nlp"]
 CMD ["--help"]