Sentence-case the project links

Author: Perlence

pyproject.toml

@@ -23,8 +23,8 @@ classifiers = [
 [project.urls]
 Documentation = "https://ahkpy.readthedocs.io/en/latest/"
 Changelog = "https://github.com/Perlence/AutoHotkey.py/blob/master/CHANGES.md"
-"Source Code" = "https://github.com/Perlence/AutoHotkey.py"
-"Issue Tracker" = "https://github.com/Perlence/AutoHotkey.py/issues"
+"Source code" = "https://github.com/Perlence/AutoHotkey.py"
+"Issue tracker" = "https://github.com/Perlence/AutoHotkey.py/issues"
 
 [project.scripts]
 ahkpy = "ahkpy.launcher:main"