Fix some things

.gitignore

@@ -1 +1,2 @@
-__pycache__/
+__pycache__/
+dist/

README.md

@@ -1,4 +1,4 @@
-#xopp2py
+# xopp2py
 
 Python interface to .xopp (Xournal++) files.
 

src/xopp2py/abstract_syntax.py

@@ -17,7 +17,7 @@ class Background:
 @dataclass
 class Stroke:
     values: str # Just the XML text in between the tags. Meaning: stroke positions.
-    attributes: str   # just the XML attributes as encountered
+    attributes: dict[str,str]   # just the XML attributes as encountered
 
 @dataclass
 class Text: