Mention firefox in first line

apps/Pale Moon Browser/description

@@ -1,9 +1,10 @@
-lightweight and customizable web browser.
+A distant fork of Firefox, this is a lightweight and customizable web browser.
 Pale Moon offers you a browsing experience in a browser completely built
 from its own, independently developed source that has been forked off from
-Firefox code a number of years ago, with carefully selected
+Mozilla's code a number of years ago, with carefully selected
 features and optimizations to improve the browser's stability and user
 experience, while offering full customization and a growing collection of
 extensions and themes to make the browser truly your own.
 
 To run: Menu -> Internet -> Pale Moon
+To run in terminal: palemoon