Fix markdownlint configuration

Author: swisskyrepo

.github/.markdownlint.json

@@ -1,6 +1,7 @@
 {
     "default": true,
     "MD013": false,
+    "MD033": false,
     "no-duplicate-heading": {
       "siblings_only": true
     },

README.md

@@ -49,4 +49,4 @@ This project is proudly sponsored by these companies:
 
 [<img src="https://avatars.githubusercontent.com/u/48131541?s=40&v=4" alt="sponsor-vaadata">](https://www.vaadata.com/)
 [<img src="https://avatars.githubusercontent.com/u/34724717?s=40&v=4" alt="sponsor-serpapi">](https://serpapi.com)
-[<img src="https://avatars.githubusercontent.com/u/50994705?s=40&v=4" alt="sponsor-projectdiscovery">](https://projectdiscovery.io/)
+[<img src="https://avatars.githubusercontent.com/u/50994705?s=40&v=4" alt="sponsor-projectdiscovery">](https://projectdiscovery.io/)