Merge branch 'staging' into 'master'

.gitmodules

tutorials/analytics-clustering-tutorial

tutorials/analytics-exploratory-analysis

tutorials/analytics-exploratory-analysis/.gitignore

...oratory-analysis/assets/exploratory_analysis/Logo_MPG.png

...atory-analysis/assets/exploratory_analysis/Logo_NOMAD.png

...ata/exploratory_analysis/octet_binaries/RS_structures.xyz

...ata/exploratory_analysis/octet_binaries/ZB_structures.xyz

...loratory_analysis/perovskites/cubic_perosvkistes_data.asc

...analytics-exploratory-analysis/exploratory_analysis.ipynb

tutorials/analytics-exploratory-analysis/metainfo.json

tutorials/analytics-exploratory-analysis/setup.py