Merge pull request #4 from Benjamin-Ds/master

Fix images paths in chapter 03
Merge pull request #5 from Benjamin-Ds/master

Fix image path with no extension in chap-01
Correction de typos
Typos
Update link
Merge pull request #6 from tanguy-martin/quick_typo_fix

Correction de typos
Merge pull request #7 from DirtyF/master

Correct typos in the README file
Next block of chapter 3 (still partial)

Chapitre 3 jusqu'à "Exploiter au mieux les caches"
started chapter 2
Got the file name wrong the last time
Added pictures
Trying freaky shit with base href
Images get a relative URL to raw
added odt2txt util, as well as <br/> for line breaks
Paragraphs with internal line-breaks are now considered code
Images should now be cleaner. Removed debug prints
Fix #3 - oeuvre -> œuvre
Fix #11 typo chapter 03
curly quotes => standard quotes as per issue #10
Images now have meaningful names