- Python: tree of python objects instead of tree of dicts

- Rust: more derives

ome-metadata/README.md

@@ -0,0 +1,25 @@
+# ome-metadata
+
+Open Microscopy XML metadata (https://www.openmicroscopy.org/Schemas/) as a collection of Rust structs and enums, with translation to Python.
+
+## Rust
+``` 
+use std::fs::read_to_string;
+use ome_metadata::Ome;
+
+let xml = read_to_string($file)?;
+let ome: Ome = xml.parse()?;
+let image = &ome.image[0];
+println!("acquisition date: {:#?}", image.acquisition_date);
+```
+
+## Python
+```
+from ome_metadata import Ome
+
+with open($file) as f:
+    xml = f.read()
+ome = Ome.from_xml(xml)
+image = ome.image[0]
+print(f"acquisition date: {image.acquisition_date}")
+```