add img session1

0ac6c814 · hpolvech · 9953af68 · 0ac6c814 · 0ac6c814 · 0ac6c814
Commit 0ac6c814 authored 5 years ago by hpolvech
--- a/session_1/img/formationR_VandAstep8.png
+++ b/session_1/img/formationR_VandAstep8.png
--- a/session_1/img/formationR_VandAstep8_encadre.png
+++ b/session_1/img/formationR_VandAstep8_encadre.png
--- a/session_1/img/formationR_installTidyverse.png
+++ b/session_1/img/formationR_installTidyverse.png