edit README.md and helpers

helpers/font_converter.py

@@ -0,0 +1,13 @@
+import base64
+
+
+def font_to_base64(path) -> str:
+    with open(path, "rb") as f:
+        encoded = base64.b64encode(f.read()).decode("utf-8")
+    return encoded
+
+
+if __name__ == '__main__':
+    font = font_to_base64("puffy.otf")
+    with open("font_as_base.txt", "w") as file:
+        file.write(font)