diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3006b27
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+book/
diff --git a/book.toml b/book.toml
index 1a0bc37..6a16489 100644
--- a/book.toml
+++ b/book.toml
@@ -6,5 +6,4 @@ src = "src"
title = "Today I learned"
[build]
-build-dir = "docs"
create-missing = false
diff --git a/docs/.nojekyll b/docs/.nojekyll
deleted file mode 100644
index 8631215..0000000
--- a/docs/.nojekyll
+++ /dev/null
@@ -1 +0,0 @@
-This file makes sure that Github Pages doesn't process mdBook's output.
\ No newline at end of file
diff --git a/docs/FontAwesome/css/font-awesome.css b/docs/FontAwesome/css/font-awesome.css
deleted file mode 100644
index 540440c..0000000
--- a/docs/FontAwesome/css/font-awesome.css
+++ /dev/null
@@ -1,4 +0,0 @@
-/*!
- * Font Awesome 4.7.0 by @davegandy - http://fontawesome.io - @fontawesome
- * License - http://fontawesome.io/license (Font: SIL OFL 1.1, CSS: MIT License)
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diff --git a/docs/clipboard.min.js b/docs/clipboard.min.js
deleted file mode 100644
index 02c549e..0000000
--- a/docs/clipboard.min.js
+++ /dev/null
@@ -1,7 +0,0 @@
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diff --git a/docs/css/general.css b/docs/css/general.css
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index e2df5d6..0000000
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diff --git a/docs/css/print.css b/docs/css/print.css
deleted file mode 100644
index 5e690f7..0000000
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diff --git a/docs/css/variables.css b/docs/css/variables.css
deleted file mode 100644
index 9534ec8..0000000
--- a/docs/css/variables.css
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diff --git a/docs/elasticlunr.min.js b/docs/elasticlunr.min.js
deleted file mode 100644
index 94b20dd..0000000
--- a/docs/elasticlunr.min.js
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * elasticlunr - http://weixsong.github.io
- * Lightweight full-text search engine in Javascript for browser search and offline search. - 0.9.5
- *
- * Copyright (C) 2017 Oliver Nightingale
- * Copyright (C) 2017 Wei Song
- * MIT Licensed
- * @license
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