Merge pull request #1025 from otoolep/patch-1

rqlite is spelled with all lowercase

Author: dhui

Diff for: README.md

@@ -43,7 +43,7 @@ Database drivers run migrations. [Add a new database?](database/driver.go)
 * [ClickHouse](database/clickhouse)
 * [Firebird](database/firebird)
 * [MS SQL Server](database/sqlserver)
-* [RQLite](database/rqlite)
+* [rqlite](database/rqlite)
 
 ### Database URLs