Update README.md

README.md

@@ -5,9 +5,33 @@ Earth System Emulator (ESEm)
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-A tool for emulating geophysical models including (but not limited to!) Earth System Models.
+A tool for emulating geophysical datasets including (but not limited to!) Earth System Models.
+
+Why ESEm?
+---------
+
+While excellent tools exist for regression and emulation, and similarly for efficient calibration, there isn't a single package that makes it easy for Earth scientists to emulate and calibrate their models. ESEm provides a simple interface to do so, with a thin wrapper around familiar emulation engines and efficient sampling tools. 
+
+ESEm uses [Iris](https://scitools-iris.readthedocs.io/en/stable/) Cubes to retain useful geophysical information about the data being emulated and also streamlines the typical task of co-locating models and observations for comparison using [CIS](https://cis.readthedocs.io/).
+
+These tasks aren't just restricted to emulating and calibrating models though and can be used in any situation where regression of Earth system data is needed.
+
+Documentation
+-------------
+
+Detailed instructions and example notebooks can be found in our official doccumentation at https://xarray.pydata.org/
+
+Contributing
+------------
+
+Contributions to ESEm of any size are very welcome, please see our [Contributing] page for more details.
+
+
+Get in touch
+------------
+ - Ask general installation and usage questions ("How do I?") in our [Discussions](https://github.com/duncanwp/ESEm/discussions) tab.
+ - Report bugs and suggest features in the [Issues](https://github.com/duncanwp/ESEm/issues) tab
 
-This project is still a work in progress and documentation will be coming shortly, in the meantime some example notebooks which demonstrate the basic usage can be found [here](docs/examples).
 
 License
 -------