diff --git a/README.md b/README.md
index c470fee..a9cc08f 100644
--- a/README.md
+++ b/README.md
@@ -13,14 +13,14 @@ LambdicSql from NuGet
 
 https://www.nuget.org/packages/LambdicSql.Npgsql/<br>
 
-Supported pratforms are
+Supported platforms are
 - .NETFramework 3.5~
 - PCL
 - .NETStandard 1.2~
 
 ## Featuring Dapper
 Generate sql text and parameters by LambdicSql.<br>
-And execut and map to object, recommend using dapper.
+And execute and map to object, recommend using dapper.
 
     PM> Install-Package Dapper
 
@@ -33,7 +33,7 @@ DapperAdapter.Assembly = typeof(Dapper.SqlMapper).Assembly;
 DapperAdapter.Assembly = typeof(Dapper.SqlMapper).GetTypeInfo().Assembly;
 ```
 ## Support tool.
-It is a Visual Stuido Extension.
+It is a Visual Studio Extension.
 You can execute the code written in LambdicSql and get the result.
 https://marketplace.visualstudio.com/items?itemName=ishikawa-tatsuya.LambdicSqlAssistant
 ## Quick Start.
@@ -527,3 +527,4 @@ FROM tbl_remuneration
     JOIN tbl_staff ON tbl_staff.id = tbl_remuneration.staff_id
 WHERE @p_0 < tbl_remuneration.money AND tbl_remuneration.money < @p_1
 ```
+