Corrected typo in CITATION

Author: MikeS96

CITATION.cff

@@ -13,12 +13,12 @@ authors:
   orcid: "https://orcid.org/0000-0003-2910-5116"
 title: "Monocular visual autonomous landing system for quadcopter drones using software in the loop"
 version: 1.0.0
-preferred-citation:
-  identifiers:
-    - type: other
-      value: "arXiv:2108.06616"
-      description: The ArXiv preprint of the paper
 type: software
 date-released: 2021-08-21
 license: MIT
 repository-code: "https://github.com/MikeS96/autonomous_landing_uav"
+preferred-citation:
+  identifiers:
+    - type: other
+      value: "arXiv:2108.06616"
+      description: The ArXiv preprint of the paper