updating documentation & dockerfile

Dockerfile

@@ -5,4 +5,4 @@ RUN mkdir /outputs && mkdir /inputs
 COPY ./setup.py /inputs/setup.py
 COPY ./src /inputs/src
 
-RUN cd /inputs && python ./setup.py install && cd /outputs
+RUN cd /inputs && python ./setup.py install

docs/source/introduction.rst

@@ -1 +1 @@
-.. include:: ../../toc.rst
+.. include:: ../../README.rst

src/musicbrainzapi/cli/commands/cmd_lyrics.py

@@ -78,7 +78,6 @@ def lyrics(
     director._query_for_data()
     director._get_lyrics()
     director._calculate_basic_statistics()
-    if show_summary is not None:
     director._calculate_descriptive_statistics()
 
     # Get the Lyrics object