minor fixes

README.md

@@ -1,9 +1,8 @@
 # ShfitedPowGMRES
 
-```bash
+Work in progress. In the actual version, the `main.py` works but only for the Algorithm 1 of the paper. It's suggested to use the first database.
-mkdir data && cd data
+
-wget https://snap.stanford.edu/data/web-BerkStan.txt.gz
+### TO DO:
-wget https://snap.stanford.edu/data/web-Stanford.txt.gz
+
-gunzip web-Stanford.txt.gz
+- [ ] Add the other algorithms
-gunzip web-BerkStan.txt.gz
+- [ ] Use argparse to make the code more flexible in `load_data()`
-```