Improve global project (typos, enforce 80 columns whenever possible, diagrams) and finish 3.1

1 files changed, 1255 insertions, 0 deletions

diff --git a/pictures/ventilation.svg b/pictures/ventilation.svg
new file mode 100644
index 0000000..6d17462
--- /dev/null
+++ b/pictures/ventilation.svg
@@ -0,0 +1,1255 @@
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