Added new features and commands to readme

Author: ecumene

README.md

@@ -1,8 +1,8 @@
 # Sloth
 ![](models/demo/pikachu.gif)
-A one-of-a-kind command line 3D software rasterizer made with termion, tobj, and nalgebra. Currently it 
-supports OBJ file formats without textures or materials. Here's a really simple command for you to get started.    
+A one-of-a-kind command line 3D software rasterizer made with crossterm, tobj, stl, and nalgebra. Currently it 
+supports OBJ file formats without textures or materials, or standard STL files. Here's a really simple command for you to get started.    
 `cargo build --release`    
-`./target/release/sloth -r "0 0 90" hand.obj`    
+`./target/release/sloth models/Pikachu.obj`    
 For multiple models:   
-`./target/release/sloth -r "0 0 90" "suzy.obj hand.obj"`   
+`./target/release/sloth "models/Pikachu.obj models/suzy.obj"`