Merge pull request #636 from robinovitch61/master

Add nano and vim to Dockerfiles

minimal-notebook/Dockerfile

@@ -28,7 +28,7 @@ RUN apt-get update && apt-get install -yq --no-install-recommends \
     texlive-latex-extra \
     texlive-xetex \
     unzip \
-    vim \
+    nano \
     && apt-get clean && \
     rm -rf /var/lib/apt/lists/*