change tutorial layout

.github/workflows/workflow.yml

@@ -3,10 +3,10 @@ name: Owl Book CI Workflow
 on:
   push:
     branches:
-      - master
+      - master123
   pull_request:
     branches:
-      - master
+      - master123
 
 jobs:
   build:

.gitignore

@@ -18,3 +18,7 @@ book/*.toc
 book/*.ilg
 
 .vscode/
+
+_site
+Gemfile.lock
+.jekyll-cache/

404.html

@@ -0,0 +1,25 @@
+---
+permalink: /404.html
+layout: default
+---
+
+<style type="text/css" media="screen">
+  .container {
+    margin: 10px auto;
+    max-width: 600px;
+    text-align: center;
+  }
+  h1 {
+    margin: 30px 0;
+    font-size: 4em;
+    line-height: 1;
+    letter-spacing: -1px;
+  }
+</style>
+
+<div class="container">
+  <h1>404</h1>
+
+  <p><strong>Page not found :(</strong></p>
+  <p>The requested page could not be found.</p>
+</div>

Gemfile

@@ -0,0 +1,36 @@
+source "https://rubygems.org"
+# Hello! This is where you manage which Jekyll version is used to run.
+# When you want to use a different version, change it below, save the
+# file and run `bundle install`. Run Jekyll with `bundle exec`, like so:
+#
+#     bundle exec jekyll serve
+#
+# This will help ensure the proper Jekyll version is running.
+# Happy Jekylling!
+gem "jekyll", "~> 4.3.3"
+# This is the default theme for new Jekyll sites. You may change this to anything you like.
+gem "minima", "~> 2.5"
+
+# If you want to use GitHub Pages, remove the "gem "jekyll"" above and
+# uncomment the line below. To upgrade, run `bundle update github-pages`.
+# gem "github-pages", group: :jekyll_plugins
+# If you have any plugins, put them here!
+group :jekyll_plugins do
+  gem "jekyll-feed", "~> 0.12"
+end
+
+# Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
+# and associated library.
+platforms :mingw, :x64_mingw, :mswin, :jruby do
+  gem "tzinfo", ">= 1", "< 3"
+  gem "tzinfo-data"
+end
+
+# Performance-booster for watching directories on Windows
+gem "wdm", "~> 0.1.1", :platforms => [:mingw, :x64_mingw, :mswin]
+
+# Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
+# do not have a Java counterpart.
+gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
+
+gem "jekyll-remote-theme"

README.md

@@ -1,42 +1,3 @@
 # Owl Online Tutorial
 
-The main purpose of the online tutorial is for teaching how to use Owl software. The tutorial also convers many useful numerical and system techniques in numerical computing. Furthermore, the tutorial includes in-depth discussion on the lessons learnt by building a large and complex software system to enable scientific computing in OCaml.
-
-The tooling and template reuse those in [Real World OCaml](https://realworldocaml.org/) under original authors' permission, with minor modidications.
-
-
-Test code:
-
-```ocaml
-let test_sum_reduce ?(seq = false) ?(a = true) expected shape axis =
-    let input = if seq = false then N.ones shape else N.sequential shape in
-    let output = if a = true then N.sum_reduce ~axis input else N.sum_reduce input in
-    let out_shp = N.shape output in
-    let expected = N.of_array expected out_shp in
-    close output expected
-```
-
-## Compile
-
-- `make` uses docker container to build the book.
-- `make test` synchronises with Owl API by evaluating the code snippet in the tutorial book.
-- `make compile` generates html files.
-- Edit `book/toc.scm` to add more chapters. Do not edit `book/tune` and `static/dune` directly.
-- Refer to [RWO](https://github.com/realworldocaml/book/blob/master/README.md) for details.
-
-Note that tooling is not finished at the moment. Structure and tools are copied mostly from RWO book.
-
-
-## Contribute
-
-Currently contribution to the book is mainly in the form of Pull Request. 
-Normally you only need to change one of the `README.md` files in `book/` directory, though adding inline scripts requires some special care.
-Please make sure that your local changes compile without any error, and include both the change of markdown file in `docs/` directory in a PR. 
-
-
-## Tooling
-
-The following tools are used in the project, please refer to their documentation.
-
-- [Pandoc](https://pandoc.org/MANUAL.html)
-- [Pandoc-crossref](http://lierdakil.github.io/pandoc-crossref/)
+The main purpose of the online tutorial is for teaching how to use Owl software. The tutorial also convers many useful numerical and system techniques in numerical computing. Furthermore, the tutorial includes in-depth discussion on the lessons learnt by building a large and complex software system to enable scientific computing in OCaml.

_config.yml

@@ -0,0 +1,58 @@
+# Welcome to Jekyll!
+#
+# This config file is meant for settings that affect your whole blog, values
+# which you are expected to set up once and rarely edit after that. If you find
+# yourself editing this file very often, consider using Jekyll's data files
+# feature for the data you need to update frequently.
+#
+# For technical reasons, this file is *NOT* reloaded automatically when you use
+# 'bundle exec jekyll serve'. If you change this file, please restart the server process.
+#
+# If you need help with YAML syntax, here are some quick references for you:
+# https://learn-the-web.algonquindesign.ca/topics/markdown-yaml-cheat-sheet/#yaml
+# https://learnxinyminutes.com/docs/yaml/
+#
+# Site settings
+# These are used to personalize your new site. If you look in the HTML files,
+# you will see them accessed via {{ site.title }}, {{ site.email }}, and so on.
+# You can create any custom variable you would like, and they will be accessible
+# in the templates via {{ site.myvariable }}.
+
+title: Owl Tutorial
+email: [email protected]
+description: >- # this means to ignore newlines until "baseurl:"
+  
+  Write an awesome description for your new site here. You can edit this
+  line in _config.yml. It will appear in your document head meta (for
+  Google search results) and in your feed.xml site description.
+baseurl: "" # the subpath of your site, e.g. /blog
+url: "https://ocaml.xyz/tutorial/" # the base hostname & protocol for your site, e.g. http://example.com
+twitter_username: jekyllrb
+github_username:  jzstark
+
+# Build settings
+remote_theme: pages-themes/[email protected]
+plugins:
+- jekyll-remote-theme # add this line to the plugins list if you already have one
+
+show_downloads:   false
+
+# Exclude from processing.
+# The following items will not be processed, by default.
+# Any item listed under the `exclude:` key here will be automatically added to
+# the internal "default list".
+#
+# Excluded items can be processed by explicitly listing the directories or
+# their entries' file path in the `include:` list.
+#
+# exclude:
+#   - .sass-cache/
+#   - .jekyll-cache/
+#   - gemfiles/
+#   - Gemfile
+#   - Gemfile.lock
+#   - node_modules/
+#   - vendor/bundle/
+#   - vendor/cache/
+#   - vendor/gems/
+#   - vendor/ruby/