diff --git a/docs/assets/icons/icon-128x128.png b/docs/assets/icons/icon-128x128.png
new file mode 100644
index 0000000..d716200
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diff --git a/docs/assets/icons/icon-144x144.png b/docs/assets/icons/icon-144x144.png
new file mode 100644
index 0000000..e6b8cc3
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diff --git a/docs/assets/icons/icon-152x152.png b/docs/assets/icons/icon-152x152.png
new file mode 100644
index 0000000..19ce33d
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diff --git a/docs/assets/icons/icon-192x192.png b/docs/assets/icons/icon-192x192.png
new file mode 100644
index 0000000..0f87493
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diff --git a/docs/assets/icons/icon-384x384.png b/docs/assets/icons/icon-384x384.png
new file mode 100644
index 0000000..5af6395
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diff --git a/docs/assets/icons/icon-512x512.png b/docs/assets/icons/icon-512x512.png
new file mode 100644
index 0000000..c724c18
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diff --git a/docs/assets/icons/icon-72x72.png b/docs/assets/icons/icon-72x72.png
new file mode 100644
index 0000000..8d765bc
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diff --git a/docs/assets/icons/icon-96x96.png b/docs/assets/icons/icon-96x96.png
new file mode 100644
index 0000000..80f071a
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diff --git a/docs/manifest.json b/docs/manifest.json
new file mode 100644
index 0000000..40cdaa2
--- /dev/null
+++ b/docs/manifest.json
@@ -0,0 +1,53 @@
+{
+  "name": "Documentations",
+  "short_name": "Docs",
+  "theme_color": "#2196f3",
+  "background_color": "#2196f3",
+  "display": "fullscreen",
+  "orientation": "portrait",
+  "scope": "/central_docs/",
+  "start_url": "./",
+  "icons": [
+    {
+      "src": "assets/icons/icon-72x72.png",
+      "sizes": "72x72",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-96x96.png",
+      "sizes": "96x96",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-128x128.png",
+      "sizes": "128x128",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-144x144.png",
+      "sizes": "144x144",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-152x152.png",
+      "sizes": "152x152",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-384x384.png",
+      "sizes": "384x384",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ],
+  "splash_pages": null
+}
\ No newline at end of file
diff --git a/docs/stylesheets/second_extra.css b/docs/stylesheets/second_extra.css
new file mode 100644
index 0000000..644ca72
--- /dev/null
+++ b/docs/stylesheets/second_extra.css
@@ -0,0 +1,17 @@
+@page {
+    size: a4 portrait;
+    margin: 25mm 10mm 25mm 10mm;
+    counter-increment: page;
+    font-family: "Roboto","Helvetica Neue",Helvetica,Arial,sans-serif;
+    white-space: pre;
+    color: grey;
+    @bottom-left {
+        content: '© 2020 bruno@clicclac.info';
+    }
+    @bottom-center {
+        content: string(chapter);
+    }
+    @bottom-right {
+        content: 'Page ' counter(page);
+    }
+}
diff --git a/src/mkdocs-pdf-export-plugin b/src/mkdocs-pdf-export-plugin
new file mode 160000
index 0000000..7c6c82c
--- /dev/null
+++ b/src/mkdocs-pdf-export-plugin
@@ -0,0 +1 @@
+Subproject commit 7c6c82c96490a84b4bd617e21977259f60dd5007