Include README example to pick by name

Author: gotlougit

README.md

@@ -10,7 +10,7 @@
 
 ```sh
 # Required dependencies:
-# 
+#
 #  gcc
 #  libssl-dev
 #  libdbus-1-dev
@@ -62,6 +62,10 @@ editor = "emacs"
 leetcode pick 1
 ```
 
+```sh
+leetcode pick --name "Two Sum"
+```
+
 ```sh
 [1] Two Sum is on the run...
 
@@ -187,13 +191,13 @@ import json;
 
 def plan(sps, stags):
     ##
-    # `print` in python is supported, 
-    # if you want to know the data structures of these two args, 
+    # `print` in python is supported,
+    # if you want to know the data structures of these two args,
     # just print them
     ##
     problems = json.loads(sps)
     tags = json.loads(stags)
-	
+
     ret = []
     tm = {}
     for tag in tags: