Documentation: Add a guide to building

Author: Chaoses-Ib

README.md

@@ -59,8 +59,22 @@ MouseClickDrag, Left, 5, 5, 150, 50</pre></td>
 </tbody>
 </table>
 
-## Download
+## Downloading
 [Releases](../../releases)
 
 ## See Also
-* [IbLogiSoftExt](https://github.com/Chaoses-Ib/IbLogiSoftExt)
+* [IbLogiSoftExt](https://github.com/Chaoses-Ib/IbLogiSoftExt)
+
+## For Developers
+### Building
+1. Put [IbWinCppLib](https://github.com/Chaoses-Ib/IbWinCppLib/tree/master/WinCppLib/IbWinCppLib) in `C:\L\C++\packages` (in other locations you need to modify the .vcxproj files).
+1. [vcpkg](https://github.com/microsoft/vcpkg)
+    ```
+    set VCPKG_DEFAULT_TRIPLET=x64-windows-static-md
+    vcpkg install detours rapidjson
+    ```
+    For Test project you also need:
+    ```
+    vcpkg install boost-test fmt
+    ```
+    Change VCPKG_DEFAULT_TRIPLET to x86-windows-static-md if you need x86 version. 

README.zh-Hans.md

@@ -61,4 +61,18 @@ MouseClickDrag, Left, 5, 5, 150, 50</pre></td>
 [Releases](../../releases)
 
 ## 相关推荐
-* [IbLogiSoftExt](https://github.com/Chaoses-Ib/IbLogiSoftExt)
+* [IbLogiSoftExt](https://github.com/Chaoses-Ib/IbLogiSoftExt)
+
+## 开发者
+### 构建
+1. 将 [IbWinCppLib](https://github.com/Chaoses-Ib/IbWinCppLib/tree/master/WinCppLib/IbWinCppLib) 放入 `C:\L\C++\packages`（其它位置需要修改 .vcxproj 文件）。
+1. [vcpkg](https://github.com/microsoft/vcpkg)
+    ```
+    set VCPKG_DEFAULT_TRIPLET=x64-windows-static-md
+    vcpkg install detours rapidjson
+    ```
+    Test 项目还需要：
+    ```
+    vcpkg install boost-test fmt
+    ```
+    如果需要 x86 版本就把 VCPKG_DEFAULT_TRIPLET 改为  x86-windows-static-md。