Slightly improve title

Author: rubenv

README.md

@@ -133,7 +133,7 @@ See [here](https://github.com/go-sql-driver/mysql#parsetime) for more informatio
 ### Oracle
 Oracle Driver is [oci8](https://github.com/mattn/go-oci8), it is not pure golang code and rely on Oracle Office Client([Instant Client](https://www.oracle.com/technetwork/database/database-technologies/instant-client/downloads/index.html)), more detail information is [oci8 repo](https://github.com/mattn/go-oci8).
 
-**Installation specified sql-migrate**
+#### Install with Oracle support
 
 To install the library and command line program, use the following: