docs(validation.rst,-install.rst): indicate relative path not absolute path for exclude_files options

Author: mattgebert

doc/install.rst

@@ -141,11 +141,11 @@ numpydoc_validation_exclude : set
     ``numpydoc_validation_checks`` is not an empty set.
 numpydoc_validation_exclude_files : set
     A container of strings using :py:mod:`re` syntax specifying path patterns to
-    ignore for docstring validation.
+    ignore for docstring validation, relative to the package root.
     For example, to skip docstring validation for all objects in
     ``tests\``::
 
-        numpydoc_validation_exclude_files = {"$.*tests/.*"}
+        numpydoc_validation_exclude_files = {"^tests/.*$"}
 
     The default is an empty set meaning no paths are excluded from docstring
     validation.

doc/validation.rst

@@ -36,8 +36,8 @@ the pre-commit hook as follows:
   expressions ``\.undocumented_method$`` or ``\.__repr__$``. This
   maps to ``numpydoc_validation_exclude`` from the
   :ref:`Sphinx build configuration <validation_during_sphinx_build>`.
-* ``exclude_files``: Exclude file paths matching the regular expressions
-  ``^tests/.*$`` or ``^module/gui.*$``. This maps to
+* ``exclude_files``: Exclude file paths (relative to the package root) matching
+  the regular expressions ``^tests/.*$`` or ``^module/gui.*$``. This maps to
   ``numpydoc_validation_exclude_files`` from the
   :ref:`Sphinx build configuration <validation_during_sphinx_build>`.
 * ``override_SS05``: Allow docstrings to start with "Process ", "Assess ",