Fixing typo

Author: IVarha

DBSCoalignment.json

@@ -2,7 +2,7 @@
   "$schema": "https://raw.githubusercontent.com/Slicer/Slicer/main/Schemas/slicer-extension-catalog-entry-schema-v1.0.1.json#",
   "build_dependencies": [],
   "build_subdirectory": ".",
-  "category": "Netsim",
+  "category": "Netstim",
   "scm_revision": "master",
   "scm_url": "https://github.com/IVarha/SlicerDBSCoalignment.git",
   "tier": 1