Added gitignore helper

Author: LeoHeo

helper-bash-functions.md

@@ -4,6 +4,8 @@
 function mkcd() {
     mkdir -p "$*" && cd "$_"
 }
+
+$ mkcd foo
 ```
 
 
@@ -12,5 +14,17 @@ function mkcd() {
 function myip() {
   ifconfig | grep "inet " | grep -Fv 127.0.0.1 | awk '{print $2}'
 }
+
+$ myip
+```
+
+## gitignore 쉽게 만들기
+
+```bash
+function gi() {
+  curl -L -s https://www.gitignore.io/api/$@
+}
+
+$ gi intellij > .gitignore
 ```