FLAME: a library for atomistic modeling environments was added. (#525)

* Update package_index.yml

FLAME: a library for atomistic modeling environments was added.

* Update data/package_index.yml

Co-authored-by: Ivan Pribec <ivan.pribec@gmail.com>

* Update data/package_index.yml

Co-authored-by: Ivan Pribec <ivan.pribec@gmail.com>

* Update package_index.yml

* fix tags according to format

---------

Co-authored-by: Ivan Pribec <ivan.pribec@gmail.com>
Co-authored-by: Henil Panchal <henilp105@gmail.com>

Author: 3 people

data/package_index.yml

@@ -1640,3 +1640,11 @@
   tags: quasi-newton-optimization stochastic-optimization acm-toms
   license: MIT
   version: none
+
+- name: FLAME
+  gitlab: flame-code/FLAME
+  description: FLAME: a library for atomistic modeling environments.
+  categories: scientific
+  tags: machine-learning interatomic-potential crystal-structure-prediction electrostatic-energy-forces ions
+  license: GPL-2.0
+  version: none