diff --git a/source/01_documentation.md b/source/010_documentation.md
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diff --git a/source/03_plan_general.md b/source/030_plan_general.md
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diff --git a/source/07_pose_tole_panneau.md b/source/070_pose_tole_panneau.md
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diff --git a/source/08_installation_electricite.md b/source/080_installation_electricite.md
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diff --git a/source/09_installation_textiles.md b/source/090_installation_textiles.md
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diff --git a/source/10_sieges.md b/source/100_sieges.md
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diff --git a/source/11_accessoires.md b/source/110_accessoires.md
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diff --git a/source/12_tests_verifications.md b/source/120_tests_verifications.md
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diff --git a/source/index.md b/source/index.md
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--- a/source/index.md
+++ b/source/index.md
@@ -31,16 +31,16 @@ Le nom de marque vhélio ne peut être utilisé sans autorisation de l’associa
 Copyright Vélo Solaire Pour Tous, Mars 2022, sous licence CERN-OHL-S version 2
 
 ```{toctree}
-01_documentation
-02_moyens_necessaires
-03_plan_general
-04_assemblage_chassis
-05_montage_pieces_cycles
-06_stabilisateurs
-07_pose_tole_panneau
-08_installation_electricite
-09_installation_textiles
-10_sieges
-11_accessoires
-12_tests_verifications
+010_documentation
+020_moyens_necessaires
+030_plan_general
+040_assemblage_chassis
+050_montage_pieces_cycles
+060_stabilisateurs
+070_pose_tole_panneau
+080_installation_electricite
+090_installation_textiles
+100_sieges
+110_accessoires
+120_tests_verifications
 ```