fix: including pymatgen in the requirements.

Signed-off-by: Matteo Manica <drugilsberg@gmail.com>

requirements.txt

@@ -12,6 +12,7 @@ gt4sd>=1.0.5
 molgx>=0.22.0a1
 molecule_generation
 nglview
+pymatgen>=2022.11.7
 PyTDC==0.3.7
 gradio==3.12.0
 markdown-it-py>=2.1.0
@@ -26,4 +27,4 @@ paccmann_generator @ git+https://github.com/PaccMann/paccmann_generator@0.0.2
 paccmann_gp @ git+https://github.com/PaccMann/paccmann_gp@0.1.1
 paccmann_omics @ git+https://github.com/PaccMann/paccmann_omics@0.0.1.1
 paccmann_predictor @ git+https://github.com/PaccMann/paccmann_predictor@sarscov2
-reinvent_models @ git+https://github.com/GT4SD/reinvent_models@v0.0.1
+reinvent_models @ git+https://github.com/GT4SD/reinvent_models@v0.0.1