Add instructions

README.md

@@ -1,2 +1,37 @@
 # map2map
 Neural network emulators to transform field/map data
+
+
+## Installation
+
+Install in editable mode
+
+```bash
+pip install -e .
+```
+
+
+## Usage
+
+Take a look at the examples in `scripts/*.slurm`, and the command line options
+in `map2map/args.py` or by `m2m.py -h`.
+
+
+### data
+
+Structure your data to start with the channel axis and then the spatial
+dimensions.
+Put each sample in one file.
+Specify the data path with glob patterns.
+
+
+#### data normalization
+
+Input and target (output) data can be normalized by functions defined in
+`map2map2/data/norms/`.
+
+
+### model
+
+Find the models in `map2map/models/`.
+Customize the existing models, or add new models there and edit the `__init__.py`.