add py.typed

wordfreq/numbers.py

@@ -24,6 +24,7 @@ DIGIT_RE = regex.compile(r"\d")
 MULTI_DIGIT_RE = regex.compile(r"\d[\d.,]+")
 PURE_DIGIT_RE = regex.compile(r"\d+")
 
+
 def benford_freq(text: str) -> float:
     """
     Estimate the frequency of a digit sequence according to Benford's law.

wordfreq/preprocess.py

@@ -7,6 +7,7 @@ from langcodes import Language
 
 MARK_RE = regex.compile(r"[\p{Mn}\N{ARABIC TATWEEL}]", regex.V1)
 
+
 def preprocess_text(text: str, language: Language) -> str:
     """
     This function applies pre-processing steps that convert forms of words