improve readme

readme explains the mod in something of depth now.

README.md

@@ -1,23 +1,25 @@
 # Too Many Stones
 
-This mod is in a functional state, but not a polished state. It currently features 14 stone types that all spawn in the world, cobble for most of them, and bricks and blocks for all stone types. The placement of the stones is not final. More stones may be added, and you can put a feature request for new ones.
+This mod is in a quite functional state, but not a polished state. It currently features 14 stone types that all spawn in the world, cobble for most of them, and bricks and blocks for all stone types. If your game supplies stairs, you will have access to stairs and slabs. If your game has walls, then you will also get walls for most stone types. The placement of the stones in the mapgen is not final. More stones may be added, and you can put a feature request on ContentDB or the repo for new ones. I probably won't add any boring stones though.
 
 Done:
-Amazonite
-Bluestone
-Calcite
-Carnotite
-Greenstone
-Ilvaite
-Kyanite
-Marble
-Scoria
-Sugilite
-Blue Granite
-Green Granite
-Red Granite
-Rose Quartz
+Amazonite-(light green)
+Bluestone-(dark blue)
+Calcite-(light grey)
+Carnotite-(mustard yellow)
+Greenstone-(dark green)
+Ilvaite-(black)
+Kyanite-(light blue)
+Marble-(white)
+Scoria-(red)
+Sugilite-(purple)
+Blue Granite-(blue)
+Green Granite-(green)
+Red Granite-(red)
+Rose Quartz-(pink)
 
 To Do:
-Fix stone spawn locations
-Get play testers
+Finalize stone spawn locations, blob size, and blob shape
+Get play testers
+Add Ores?
+Find and add ore mods to optional depends