rajout de notes + debut beamer

docs/.gitignore

docs/présentation_consistence_faible/main.tex

docs/présentation_consistence_faible/script.md

...istence_faible/wconsistency_properties/convergence_hc.tex

...tion_consistence_faible/wconsistency_properties/index.tex

...le/wconsistency_properties/linearisation_atomicite_hc.tex

...e/wconsistency_properties/linearisation_regularite_hc.tex

...aible/wconsistency_properties/linearisation_surete_hc.tex

...stence_faible/wconsistency_properties/localiteetat_hc.tex

...onsistence_faible/wconsistency_properties/validite_hc.tex

recherches/perrin.md