diff --git a/.zshrc b/.zshrc
index 51e97c4..77ca1f7 100644
--- a/.zshrc
+++ b/.zshrc
@@ -135,6 +135,13 @@ SAVEHIST=50000      #save upto 50,000 lines in history. oh-my-zsh default is 10,
 #setopt hist_ignore_all_dups     # dont record duplicated entries in history during a single session
 alias wip="wget -qO- https://wtfismyip.com/text"	# quickly show external ip address
 alias l="ls -lah"
-https() {                                           # make httpie use https by default
+
+https() {                                           # make httpie use https
     http https://$1 $2 $3 $4 $5 $6 $7 $8 $9 $10
 }
+
+# cheat sheets (github.com/chubin/cheat.sh), find out how to use commands
+# example 'cheat tar'
+cheat() {
+    curl https://cheat.sh/$1 $2 $3 $4 $5 $6 $7 $8 $9 $10
+}
diff --git a/README.md b/README.md
index 1bd9fc9..e8d67f6 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ Quickly install and setup zsh and oh-my-zsh (https://github.com/robbyrussell/oh-
 * k (https://github.com/supercrabtree/k)
 * marker (https://github.com/pindexis/marker)
 * todotxt (https://github.com/todotxt/todo.txt-cli)
+* cheat.sh (https://github.com/chubin/cheat.sh) just an alias is all we need
 
 All oh-my-zsh plugins are installed under ~/.oh-my-zsh
 Other tools (fzf,marker,todo) are installed in ~/.quickzsh