fix

docker/Dockerfile

@@ -28,7 +28,10 @@ RUN \
         jpeg-dev zlib-dev freetype-dev lcms2-dev openjpeg-dev tiff-dev tk-dev tcl-dev
 RUN \
     pip install --upgrade pip && \
-    pip install -r /mkdocs/requirements.txt && \
+#   pip install -r /mkdocs/requirements.txt && \
+    pip install mkdocs==${MKDOCS_VERSION} && \
+	pip install mkdocs-material && \
+	pip install mkdocs-img2fig-plugin && \
     cd /bootstrap && pip install -e /bootstrap && \
     rm -rf /tmp/* /var/tmp/* /var/cache/apk/* /var/cache/distfiles/* && \
     chmod 600 /root/.ssh/config