add gitlab ci

requirements.txt

@@ -0,0 +1,19 @@
+click==7.1.2
+future==0.18.2
+Jinja2==2.11.2
+joblib==0.17.0
+livereload==2.6.3
+lunr==0.5.8
+Markdown==3.3.3
+MarkupSafe==1.1.1
+mkdocs==1.1.2
+mkdocs-material==6.1.0
+mkdocs-material-extensions==1.0.1
+nltk==3.5
+Pygments==2.7.2
+pymdown-extensions==8.0.1
+PyYAML==5.3.1
+regex==2020.10.23
+six==1.15.0
+tornado==6.0.4
+tqdm==4.51.0