Formatting changes to SSL section in README.
Formatting changes to SSL section in README.

byroot/redis-rb,ckhall/redis-rb,gallodigital/redis-rb,Shopify/redis-rb,redis/redis-rb,ckhall/redis-rb,Shopify/redis-rb,redis/redis-rb,ckhall/redis-rb,gallodigital/redis-rb,byroot/redis-rb,redis/redis-rb,byroot/redis-rb,gallodigital/redis-rb,Shopify/redis-rb