fix typo in pyproject.toml

Author: yucongalicechen

Diff for: pyproject.toml

@@ -48,7 +48,8 @@ labpdfproc = "diffpy.labpdfproc.labpdfprocapp:main"
 [tool.setuptools.packages.find]
 where = ["src"]  # list of folders that contain the packages (["."] by default)
 include = ["*"]  # package names should match these glob patterns (["*"] by default)
-exclude = ["diffpy.labpdfproc.tests*"]  # exclude packages matching these glob patterns (empty by default)namespaces = false  # to disable scanning PEP 420 namespaces (true by default)
+exclude = ["diffpy.labpdfproc.tests*"]  # exclude packages matching these glob patterns (empty by default)
+namespaces = false  # to disable scanning PEP 420 namespaces (true by default)
 
 [tool.setuptools.dynamic]
 dependencies = {file = ["requirements/run.txt"]}