update docs

README.md

@@ -12,7 +12,17 @@ pip install comicfn2dict
 
 ## API
 
-look at `comicfn2dict/comicfn2dict.py`
+<!-- eslint-skip -->
+
+```python
+from comicfn2dict import comicfn2dict, dict2comicfn
+
+path = "Comic Series #001 Title (2024).cbz"
+
+metadata: dict[str, str| tuple[str,...]] = comicfn2dict(path, verbose=0)
+
+filename: str = dict2comicfn(metadata, bool=True, verbose=0)
+```
 
 ## CLI