[gimp-web] Update OSX specific information

[Jehan <jehanp src gnome org>]

commit 2775a82a32bf1091461b58546e0b73d2032abd88
Author: Alex Samorukov <samm net-art cz>
Date:   Sat Jun 22 21:35:44 2019 +0000

    Update OSX specific information
    
    Remove outdated article and add font issue problem to FAQ

 content/docs/userfaq.md | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/content/docs/userfaq.md b/content/docs/userfaq.md
index 6ed5773c..7762503d 100644
--- a/content/docs/userfaq.md
+++ b/content/docs/userfaq.md
@@ -271,11 +271,11 @@ devices such as Wacom's.
 To fix this, we need to port GIMP to GTK+3 where everything mostly works as
 expected. This is a work in progress.
 
-###  My macOS system doesn't let me open GIMP. What do I do?
+### Under MacOS GIMP fonts are garbled
 
-We haven't yet joined the Apple Developer Program, so the DMG files we provide
-are unsigned, hence the "unidentified developer" warning. Please follow the
-procedure [described in Apple's knowledge base](https://support.apple.com/en-us/HT202491).
+Most likely this is an issue with MacOS font cache and is unrelated to GIMP. See
+[Dealing with Garbled Fonts](http://www.fontgeek.net/blog/?p=6) blog post about
+dealing with it.
 
 ## Contributing