add tips for adapting the website

tips.md

@@ -0,0 +1,22 @@
+## Some tips for updating the website
+
+### Changing the size of figures 
+Modifying x in the last line `col col-sm-x` here
+```angular2html
+<div class="row">
+  {% if site.enable_publication_thumbnails %}
+    <div class="col col-sm-4 abbr">
+```
+in [_layouts/bib.liquid](_layouts/bib.liquid). 
+
+### Adding/deleting publications
+Modify [_bibliography/papers.bib](_bibliography/papers.bib)
+
+### Adding notes to a publication
+Add a key `note={...}` to the bib entry in [_bibliography/papers.bib](_bibliography/papers.bib). 
+
+### Adding news
+Create a new file in [_news](_news)
+
+### Changing intro
+Updating file [_pages/about.md](_pages/about.md).