add tldr alternative to help

Brewfile

@@ -90,3 +90,5 @@ brew "fzf"
 brew "diff-so-fancy"
 # add nice disk usage
 brew "ncdu"
+# add tldr alternative to help
+brew "tldr"

centos.sh

@@ -205,3 +205,6 @@ curl https://raw.githubusercontent.com/so-fancy/diff-so-fancy/master/third_party
 
 # Install nice disk usage
 yum -y install ncdu
+
+# Install tldr alternative to help
+curl https://raw.githubusercontent.com/raylee/tldr/master/tldr > /usr/local/bin/tldr && chmod +x /usr/local/bin/tldr

dot_zsh_aliases

@@ -94,6 +94,7 @@ alias biggerthan10='biggerthan 10M'
 alias latency='curl cheat.sh/latency'
 alias moon='curl wttr.in/Moon'
 alias lune='moon'
+alias help='tldr'
 
 # Show/hide hidden files in Finder
 alias show="defaults write com.apple.finder AppleShowAllFiles -bool true && killall Finder"