Added AdGuard Quick Fixes filter

CONTRIBUTING.md

@@ -226,3 +226,10 @@ a task comment or hints, put them next to the same structure in the file.
 
 - Purpose: this filter blocks various kinds of ads on Turkish-language sites.
 - [Turkish folder](https://github.com/AdguardTeam/AdguardFilters/tree/master/TurkishFilter/sections)
+
+### AdGuard Quick Fixes filter
+
+- Purpose: This filter serves as a quick-response solution, ensuring that AdGuard Mv3 extension
+  users experience minimal disruption while awaiting updates of the extension with static filters.
+- [Quick Fixes folder](https://github.com/AdguardTeam/AdguardFilters/tree/master/QuickFixesFilter/sections)
+- Notes: Used in Mv3 extension only.

QuickFixesFilter/sections/quickfixes.txt

@@ -0,0 +1,15 @@
+!
+! *** Only for AdGuard Mv3 extension. ***
+! This file contains temporary duplicate fixes for popular sites, added to another filters.
+! The necessity for this file arises from the fact that static filters in the Mv3 extension are only updated
+! when the extension itself is updated. Due to this, the update process can be delayed for users, potentially
+! leaving them vulnerable to unresolved issues. This file serves as a quick-response solution, ensuring that
+! AdGuard Mv3 extension users experience minimal disruption while awaiting updates of the extension with static filters.
+!
+! Key points:
+! - Purpose: This file used to store temporary rules to address issues, regardless of which filter is
+!   causing the problem or if ads are being missed on popular sites (e.g., YouTube).
+! - Temporary: All rules added to this file are temporary and must be removed after 14 days from the date of their addition.
+! - Flexibility: Rules can be added without restrictions related to the source of the issue, ensuring quick
+!   response to solving important problems.
+!