Fix minor typos. (#203)

Author: nikezono

src/main/resources/benchmarks/tpcc/ddl-myrocks.sql

@@ -155,7 +155,7 @@ CREATE TABLE WAREHOUSE (
 CREATE INDEX IDX_CUSTOMER_NAME ON CUSTOMER (C_W_ID,C_D_ID,C_LAST,C_FIRST);
 
 -- woohak, add constraints. MySQL/InnoDB storage engine is kind of IoT.
--- and add constraints and make indexes later aretoo slow when running a single thread.
+-- and add constraints and make indexes later are too slow when running a single thread.
 -- so I just add create index and foreign key constraints before loading data.
 
 -- already created

src/main/resources/benchmarks/tpcc/ddl-singlestore.sql

@@ -154,7 +154,7 @@ CREATE TABLE WAREHOUSE (
 CREATE INDEX IDX_CUSTOMER_NAME ON CUSTOMER (C_W_ID,C_D_ID,C_LAST,C_FIRST);
 
 -- woohak, add constraints. MySQL/InnoDB storage engine is kind of IoT.
--- and add constraints and make indexes later aretoo slow when running a single thread.
+-- and add constraints and make indexes later are too slow when running a single thread.
 -- so I just add create index and foreign key constraints before loading data.
 
 -- already created