Add statement in output

Adds None==None statement in explicit string casting example.
2017-09-01 13:52:18 +05:30 · 2017-09-01 13:52:18 +05:30 · 86715d646e
parent 8e69c66246
commit 86715d646e
1 changed files with 2 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -1177,6 +1177,8 @@ nan
 ValueError: could not convert string to float: some_other_string
 >>> a == -c #inf==inf
 True
+>>> None == None # None==None
+True
 >>> b == d #but nan!=nan
 False
 >>> 50/a