Move warning symbol from the licenses list, to an "anti-features" list/section

- fixes https://github.com/awesome-selfhosted/awesome-selfhosted/issues/2705

README.md

@@ -1910,7 +1910,6 @@ _See also: [Wikimatrix](https://www.wikimatrix.org/), [Wiki Engines - WikiIndex]
 
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-- `⚠ ` - Depends on a proprietary service outside the user's control
 - `0BSD` - [BSD Zero-Clause Licence](https://opensource.org/licenses/0BSD)
 - `AAL` - [Attribution Assurance License](https://opensource.org/licenses/AAL)
 - `AGPL-3.0` - [GNU Affero General Public License 3.0](https://www.gnu.org/licenses/agpl-3.0)
@@ -1964,6 +1963,12 @@ _See also: [Wikimatrix](https://www.wikimatrix.org/), [Wiki Engines - WikiIndex]
 
 --------------------
 
+## Anti-features
+
+- `⚠ ` - Depends on a proprietary service outside the user's control
+
+--------------------
+
 ## External Links
 
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