add zenodo doi badge and citation file (#195)

CHANGELOG.md

@@ -1,12 +1,20 @@
 # Changelog
 
-## [Unreleased]
+## [unreleased](https://github.com/EUREC4A-UK/lagtraj/tree/HEAD)
+
+[Full Changelog](https://github.com/EUREC4A-UK/lagtraj/compare/v0.1.2...HEAD)
 
 *improvements*
 
 - Provide information on CDS and its API in the README file
   [\#194](https://github.com/EUREC4A-UK/lagtraj/pull/194) @sjboeing
 
+*maintenance*
+
+- add Zenodo integration and add citation file
+  [\#195](https://github.com/EUREC4A-UK/lagtraj/pull/195) @leifdenby
+
+
 ## [v0.1.2](https://github.com/EUREC4A-UK/lagtraj/tree/v0.1.2)
 
 [Full Changelog](https://github.com/EUREC4A-UK/lagtraj/compare/v0.1.1...v0.1.2)

CITATION.cff

@@ -0,0 +1,20 @@
+# This CITATION.cff file was generated with cffinit.
+# Visit https://bit.ly/cffinit to generate yours today!
+
+cff-version: 1.2.0
+title: lagtraj
+message: >-
+  If you use this software, please cite it using the
+  metadata from this file.
+type: software
+authors:
+  - given-names: Leif
+    family-names: Denby
+    email: leif@denby.eu
+    affiliation: University of Leeds
+    orcid: 'https://orcid.org/0000-0002-7611-9222'
+  - given-names: Steven
+    family-names: Böing
+    email: s.boeing@leeds.ac.uk
+    affiliation: University of Leeds
+    orcid: 'https://orcid.org/0000-0003-3794-2563'

README.md

@@ -1,6 +1,6 @@
 # lagtraj Lagragian simulations trajectories
 
-![lagtraj](https://github.com/EUREC4A-UK/lagtraj/workflows/lagtraj/badge.svg)
+![lagtraj](https://github.com/EUREC4A-UK/lagtraj/workflows/lagtraj/badge.svg) [![DOI](https://zenodo.org/badge/251601559.svg)](https://zenodo.org/badge/latestdoi/251601559)
 
 ![trajectory example](docs/eurec4a_20191209_12_lag.png)