Updated Getting started in plugin description.

Author: Edwin Westerhoud

readme.txt

@@ -33,7 +33,7 @@ After you upload an image to your WordPress site, each resized image is uploaded
 
 = Getting started =
 
-Install this plugin and obtain your free API key from https://tinypng.com/developers. The first 500 compressions per month are completely free, so roughly 100 images can be uploaded to WordPress for free, no strings attached! You can also change which of the generated thumbnail sizes should be compressed, because each one of them counts as a compression. And if you’re a heavy user, you can compress more than 500 images per month for a small additional fee per image.
+Install this plugin and obtain your free API key from https://tinypng.com/developers. With a free account you can compress roughly 100 images each month (based on a regular WordPress installation). The exact number depends on the number of thumbnail sizes you use. You can change which of the generated thumbnail sizes should be compressed, because each one of them counts as a compression. And if you’re a heavy user, you can compress more images for a small additional fee per image.
 
 = Multisite support =