Add running section to readme

Add script for easy execution outside the IDE

README.md

@@ -35,3 +35,15 @@ The following data is currently available:
   keys and their translation as value.
 - `gem_tooltips.json`: Describes tooltips for skill gems and skill gem effects only
   provided by mods.
+
+## Running RePoE
+
+- Install Python 3.4 or 3.5 and Git
+- Install [PyPoE](https://github.com/OmegaK2/PyPoE):
+  * Clone PyPoE and go into its folder
+  * Minimal install: `pip install -e .`
+  * Full install: `pip install -e .[full]` (not required for RePoE, requires Python
+    3.4)
+- Clone RePoE and go into its folder
+- Run `python RePoE.py`  
+  (`python RePoE.py -h` to see arguments)

RePoE.py

@@ -0,0 +1,2 @@
+import RePoE
+RePoE.main('data/')

RePoE/__init__.py

@@ -7,17 +7,17 @@
 from RePoE.stats import write_stats
 from RePoE.util import load_ggpk, create_relational_reader, create_translation_file_cache
 
-if __name__ == '__main__':
+
+def main(data_path='../data/'):
     modules = {
         'stat_translations': write_stat_translations,
         'mods': write_mods,
         'stats': write_stats,
         'gems': write_gems,
         'gem_tags': write_gem_tags,
+        # todo Affixes: mod ids sorted by item,
+        #               use mods.groups, mods.spawn_tags, CraftingBenchOptions.dat and maybe Essences.dat
         # todo 'buffs': BuffDefinitions.dat?
-        # todo 'master_crafting': CraftingBenchOptions.dat
-        # todo 'essences': Essences.dat
-        # todo GrantedEffects.dat and GrantedEffectsPerLevel.dat
     }
 
     parser = argparse.ArgumentParser(description="Convert GGPK files to Json using PyPoE")
@@ -35,4 +35,7 @@
     tfc = create_translation_file_cache(ggpk)
     for module in args.modules:
         print("Running module '%s'" % module)
-        modules[module](ggpk=ggpk, data_path='../data/', relational_reader=rr, translation_file_cache=tfc)
+        modules[module](ggpk=ggpk, data_path=data_path, relational_reader=rr, translation_file_cache=tfc)
+
+if __name__ == '__main__':
+    main()