Merge pull request 2do2go#11 from RoobinGood/patch-2

Fix typo at docs/README.md

Author: okv

docs/README.md

@@ -74,7 +74,7 @@ Set options of json-sql builder instance.
 
 ### setDialect(name)
 
-Set active dialect, name can has value `'base'`, `'mssql'`, `'mysql'`, `'postrgresql'` or `'sqlite'`.
+Set active dialect, name can has value `'base'`, `'mssql'`, `'mysql'`, `'postgresql'` or `'sqlite'`.
 
 ---
 
@@ -1086,4 +1086,4 @@ sql.query
 
 ## Condition operators
 
-TODO: write this section
+TODO: write this section