updated readme

Author: AverageTurtle

README.md

@@ -22,6 +22,8 @@ In order to utilize packer you will need at least one extra port in order to acc
 server-address=YOUR_IP
 # Your open port!
 port=YOUR_OPEN_PORT
+# The maximum upload size of files in bytes
+max_upload_bytes=15000000
 ```
 
 ### Accessing your web portal
@@ -30,4 +32,13 @@ You can accessing your web portal in any web browser using your servers public i
 
 ### Uploading your first model
 
-TODO (pending improvements/changes)
+To upload a model in packer you need 3 things.
+ 1. The item model definition
+ 2. The item model
+ 3. The texture(s)
+
+*you may reuse these resourcess between assets as normal for resource packs*
+
+You may author these assets as you would for any other resource pack. Packer will place all assets you upload in a folder under YOUR UUID. As a shorthand for working with files locally you can use ```packer_id``` inside any json file. This will be replaced with your UUID upon uploading.
+
+More info can be found on the (wip) Wiki.