Added danger hint when using windows paths

doc/source/intro.rst

@@ -83,6 +83,13 @@ The following example imports a CDB file.
 See :class:`.FeFormat` for a list of supported FE formats. Check out the
 :ref:`input_file_for_pyacp` section to see how input files can be created.
 
+.. danger::
+    When working on Windows, be careful of backslashes in paths: These may correspond to
+    `escape sequences <https://docs.python.org/3/reference/lexical_analysis.html#escape-sequences>`_, resulting in errors.
+    To avoid issues, make sure to quote the backslashes (by using ``\\``) or use a 
+    `raw string literal <https://docs.python.org/3/reference/lexical_analysis.html#string-and-bytes-literals>`_ by prefixing your string with **r**,
+    like ``model = acp.import_model(r"path\to\your\model.acph5")``.
+
 
 Start modelling
 ~~~~~~~~~~~~~~~