[README] : updated readme

README.md

@@ -2,10 +2,45 @@
 
 This repo contains a simple script that aims at reformatting DragonSHield exported CSV files into Moxfield acceptable ones.
 
-# How to me ?
+It also contains a more advanced script that can filter the cards based on a list of cards you want to sell.
+This script uses minimum and maximum prices as well as the minimum number of instances for each card to determine if it should be included in the output.
 
+# How to me ?
+## convert.py
 To use this tool simply put all your extracted csv files into a directory  and call the python file like follows.
 
 ```bash
-python3 ./DS2MOX_convert.py <path to csv files>
-```
+python3 ./DS2MOX_convert.py <path to csv files folder>
+```
+
+## advanced_filtering.py
+
+This script is to be used alongside a moxfield exported csv file. It will filter the cards based on the minimum and maximum prices you set as well as the minimum number of instances you want to keep.
+
+```bash
+python3 ./DS2MOX_advanced_filtering.py <path to csv files folder>
+    --min_price <minimum price for a card to be included> (default: 0.0)
+        // choices : float
+    --max_price <maximum price for a card to be included> (default: 'inf')
+        // choices : float
+    --min_instances <minimum number of instances for a card to be included> (default: 1)
+        // choices : int
+    --loglvl <log level> (default: INFO)
+        // choices : DEBUG, INFO, WARNING, ERROR, CRITICAL, debug, info, warning, error, critical
+
+```
+
+Example :
+
+```bash
+python3 ./DS2MOX_advanced_filtering.py ./csv_files --min_price 0.5 --max_price 1.0 --min_instances 2
+```
+OUTPUT:
+
+
+# Future improvements :
+- [ ] Store a local database of cards to avoid having to interrogate scryfall each time
+- [ ] Add a GUI
+- [ ] Add a way to export the filtered cards to a moxfield database
+- [ ] Add a way to export the filtered cards to a deckbox database
+- [ ] Add a way to export the filtered cards to a manabox database