diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 5387630..39c428d 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -6,7 +6,7 @@
   "customizations": {
     "vscode": {
       "settings": {
-        "terminal.integrated.defaultProfile.linux": "bash"
+        "terminal.integrated.defaultProfile.linux": "zsh"
       },
       "extensions": [
         // Liquid tags auto-complete
diff --git a/README.md b/README.md
index 9166c36..46cb3e5 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
 
 Welcome to **Notebook**, an open-source project designed with beginners in mind! Notebook is all about creating a friendly and supportive environment for developers of all levels. Whether you're just starting your coding journey or you're an experienced pro, there's a place for you here.
 
-With Notebook, you can easily contribute to technical content and gain valuable experience in the world of open source. Our blog-like platform, built on GitHub's [Jekyll](https://jekyllrb.com/ "visit offical jekyll website") framework and adorned with the user-friendly [Chirpy](https://github.com/cotes2020/jekyll-theme-chirpy "goto chripy offical repo")theme, makes it a breeze to share your knowledge and learn from others. **It's a win-win situation:** beginners learn from the insightful posts by contributors, while contributors get the satisfaction of helping others on their coding journey. Join us at Notebook and let's learn and grow together!
+With Notebook, you can easily contribute to technical content and gain valuable experience in the world of open source. Our blog-like platform, built on GitHub's [Jekyll](https://jekyllrb.com/ "visit offical jekyll website") framework and adorned with the user-friendly [Chirpy](https://github.com/cotes2020/jekyll-theme-chirpy "goto chripy offical repo") theme, makes it a breeze to share your knowledge and learn from others. **It's a win-win situation:** beginners learn from the insightful posts by contributors, while contributors get the satisfaction of helping others on their coding journey. Join us at Notebook and let's learn and grow together!
 
 <div align="center">
 
diff --git a/tools/run.sh b/tools/run.sh
deleted file mode 100755
index 0efc452..0000000
--- a/tools/run.sh
+++ /dev/null
@@ -1,54 +0,0 @@
-#!/usr/bin/env bash
-#
-# Run jekyll serve and then launch the site
-
-prod=false
-command="bundle exec jekyll s -l"
-host="127.0.0.1"
-
-help() {
-  echo "Usage:"
-  echo
-  echo "   bash /path/to/run [options]"
-  echo
-  echo "Options:"
-  echo "     -H, --host [HOST]    Host to bind to."
-  echo "     -p, --production     Run Jekyll in 'production' mode."
-  echo "     -h, --help           Print this help information."
-}
-
-while (($#)); do
-  opt="$1"
-  case $opt in
-  -H | --host)
-    host="$2"
-    shift 2
-    ;;
-  -p | --production)
-    prod=true
-    shift
-    ;;
-  -h | --help)
-    help
-    exit 0
-    ;;
-  *)
-    echo -e "> Unknown option: '$opt'\n"
-    help
-    exit 1
-    ;;
-  esac
-done
-
-command="$command -H $host"
-
-if $prod; then
-  command="JEKYLL_ENV=production $command"
-fi
-
-if [ -e /proc/1/cgroup ] && grep -q docker /proc/1/cgroup; then
-  command="$command --force_polling"
-fi
-
-echo -e "\n> $command\n"
-eval "$command"
diff --git a/tools/test.sh b/tools/test.sh
deleted file mode 100755
index 331de1c..0000000
--- a/tools/test.sh
+++ /dev/null
@@ -1,89 +0,0 @@
-#!/usr/bin/env bash
-#
-# Build and test the site content
-#
-# Requirement: html-proofer, jekyll
-#
-# Usage: See help information
-
-set -eu
-
-SITE_DIR="_site"
-
-_config="_config.yml"
-
-_baseurl=""
-
-help() {
-  echo "Build and test the site content"
-  echo
-  echo "Usage:"
-  echo
-  echo "   bash $0 [options]"
-  echo
-  echo "Options:"
-  echo '     -c, --config   "<config_a[,config_b[...]]>"    Specify config file(s)'
-  echo "     -h, --help               Print this information."
-}
-
-read_baseurl() {
-  if [[ $_config == *","* ]]; then
-    # multiple config
-    IFS=","
-    read -ra config_array <<<"$_config"
-
-    # reverse loop the config files
-    for ((i = ${#config_array[@]} - 1; i >= 0; i--)); do
-      _tmp_baseurl="$(grep '^baseurl:' "${config_array[i]}" | sed "s/.*: *//;s/['\"]//g;s/#.*//")"
-
-      if [[ -n $_tmp_baseurl ]]; then
-        _baseurl="$_tmp_baseurl"
-        break
-      fi
-    done
-
-  else
-    # single config
-    _baseurl="$(grep '^baseurl:' "$_config" | sed "s/.*: *//;s/['\"]//g;s/#.*//")"
-  fi
-}
-
-main() {
-  # clean up
-  if [[ -d $SITE_DIR ]]; then
-    rm -rf "$SITE_DIR"
-  fi
-
-  read_baseurl
-
-  # build
-  JEKYLL_ENV=production bundle exec jekyll b \
-    -d "$SITE_DIR$_baseurl" -c "$_config"
-
-  # test
-  bundle exec htmlproofer "$SITE_DIR" \
-    --disable-external \
-    --ignore-urls "/^http:\/\/127.0.0.1/,/^http:\/\/0.0.0.0/,/^http:\/\/localhost/"
-}
-
-while (($#)); do
-  opt="$1"
-  case $opt in
-  -c | --config)
-    _config="$2"
-    shift
-    shift
-    ;;
-  -h | --help)
-    help
-    exit 0
-    ;;
-  *)
-    # unknown option
-    help
-    exit 1
-    ;;
-  esac
-done
-
-main