Merge pull request clojure-cookbook#472 from dz-cies/patch2

Fix a typo in 6.10

Author: Ryan Neufeld

06_databases/6-10_connect-to-datomic.asciidoc

@@ -19,7 +19,7 @@ $ lein try com.datomic/datomic-free
 ----
 
 To create and connect to an in-memory database, use
-+database.api/create-database+ and +datomic.api/connect+:
++datomic.api/create-database+ and +datomic.api/connect+:
 
 [source,clojure]
 ----