replace trailing whitespace with blackslash in README.md

As an alternative to the markdown trailing whitespace as a line
break, we use a trailing blackslash as a markdown line break.

2012/konno/README.md

@@ -1,7 +1,7 @@
 # Best one liner
 
-Taketo Konno  
-Japan  
+Taketo Konno\
+Japan\
 <inaniwa3@gmail.com>
 
 ## To build: