BUG: Fix homepage link in AutomatedDentalTools (#2028)

Metadata key and value are expected to be specified on the same line.

Author: jcfr

AutomatedDentalTools.s4ext

@@ -18,8 +18,7 @@ depends SlicerDentalModelSeg SlicerConda
 # Inner build directory (default is ".")
 build_subdirectory .
 
-# homepage
-https://github.com/DCBIA-OrthoLab/SlicerAutomatedDentalTools/blob/main/README.md
+homepage https://github.com/DCBIA-OrthoLab/SlicerAutomatedDentalTools#readme
 
 # Firstname1 Lastname1 ([SubOrg1, ]Org1), Firstname2 Lastname2 ([SubOrg2, ]Org2)
 # For example: Jane Roe (Superware), John Doe (Lab1, Nowhere), Joe Bloggs (Noware)