Updated README.org

README.org

@@ -55,4 +55,4 @@ their difficulty (☆ = simple, ☆☆ = advanced, ☆☆☆ = sophisticated):
      information from noisy data (namely, point positions given their
      noisy distance matrix) (☆☆☆)
 - [[file:Das_Haus_vom_Nikolaus.ipynb][Das Haus vom Nikolaus]] :: graph [[https://en.wikipedia.org/wiki/Graph_traversal][traversal]] and drawing (☆☆☆)
-- Scrape review blog :: Here, we use the python package scrapy to download all reviews of a literature blog
+- Scrape review blog :: Here, we use the python package scrapy to download all reviews of a literature blog (☆☆☆)