fix yaml problem in the _config.yml

Author: dsariel

_config.yml

@@ -126,7 +126,7 @@ bing_site_verification:  # out your bing-site-verification ID (Bing Webmaster)
 # -----------------------------------------------------------------------------
 
 blog_name: Memory Stash # blog_name will be displayed in your blog page
-blog_description: "The faintest ink is more powerful than the strongest memory" presumably a Chinese proverb
+blog_description: The faintest ink is more powerful than the strongest memory, presumably a Chinese proverb
 permalink: /blog/:year/:title/
 
 # Pagination