Update readme instructions

README.md

@@ -2,12 +2,24 @@
 
 We on that goofy pack
 
+# Make uploadable zip
+
+Run build script
+
+`python build.py`
+
 # Generate manifest
 
 Export the mods from r2modman (Settings > Modpacks > Show dependancy strings) to a file, and call generate-manifest.py on it
 
 `python generate-manifest.py <file>`
 
+# Package zip
+
+Packages configs, icons and mainfest into zip
+
+`python package.py`
+
 # Core Mods
 
 Anything else is probably disableable