Fix link

docs/general/ad-filtering/create-own-filters.md

@@ -3283,7 +3283,7 @@ pseudoClasses = pseudoClass *pseudoClass
 * **`attributes`** — a list of attributes, that limit the elements selection. `name` — attribute name, `value` — substring, that is contained in attribute value.
 * **`pseudoName`** — the name of a pseudo-class.
 * **`pseudoArgs`** — the arguments of a function-style pseudo-class.
-* **`combinator`** — an operator that works similarly to the [CSS child combinator](insert link to MDN): that is, the `selector` on the right of the `combinator` will only match an element whose direct parent matches the `selector` on the left of the `combinator`.
+* **`combinator`** — an operator that works similarly to the [CSS child combinator](https://developer.mozilla.org/en-US/docs/Web/CSS/Child_combinator): that is, the `selector` on the right of the `combinator` will only match an element whose direct parent matches the `selector` on the left of the `combinator`.
 
 ### Examples