Added one entry for GitHub

BrowseWebsitesWithoutLoggingIn.txt

@@ -1,13 +1,10 @@
 [Adblock Plus 2.0]
-! Version: 13June2018v1
+! Version: 03July2018v1
 ! Title: Browse websites without logging in
 ! Expires: 3 days
 ! Homepage: https://github.com/DandelionSprout/adfilt
 ! Licence: https://github.com/DandelionSprout/adfilt/blob/master/LICENSE.md
-! Donation link: https://sproutsluckycorner.wordpress.com/2017/11/14/my-work-and-contact-resume/#donations
-! Feedback from users: https://goo.gl/forms/nSzVy6NKXpfWWEqk1
-! Other lists made by yours truly: https://github.com/DandelionSprout/adfilt/blob/master/README.md#list-of-lists
-! If you want to contribute: https://github.com/DandelionSprout/adfilt#i-hereby-request-help-with
+! For more information and details about this list and other lists of mine, visit https://github.com/DandelionSprout/adfilt/blob/master/Wiki/General-info.md#english
 
 ! Facebook
 facebook.com###u_0_6c
@@ -40,3 +37,6 @@ pixiv.net##.r18-image.front-centered
 sysla.no###agreement-popup
 sysla.no##.in.fade.modal-backdrop
 sysla.no##div.in.modal-backdrop
+
+! GitHub
+github.com##.signup-prompt