Updated social cards documentation page

Author: kamilkrzyskow

docs/setup/setting-up-social-cards.md

@@ -19,12 +19,11 @@ The social preview image for the page on [setting up site analytics].
 </figure>
 
   [^1]:
-    Both types of logos, images (`theme.logo`) and icons (`theme.icon.logo`)
-    are supported. While an image logo is used as-is, icons are filled with the
-    color used in the header (white or black), which depends on the primary
-    color. Note that custom logos and icons must reside in the `docs_dir` for
-    the plugin to find them. For guidance, see #4920. This limitation will be
-    lifted in the future when the social plugin will receive its next update.
+    Both types of logos, images ([`theme.logo`](changing-the-logo-and-icons.md#image)) 
+    and icons ([`theme.icon.logo`](changing-the-logo-and-icons.md#icon-bundled)) are supported. 
+    While an image logo is used as-is, icons are filled with the 
+    ([`social.cards_color.text`](#+social.cards_color)) color. Valid file paths inside the 
+    [`custom_dir`](../customization.md#setup-and-theme-structure) will take priority.  
 
   [colors]: changing-the-colors.md#primary-color
   [fonts]: changing-the-fonts.md#regular-font