docs: Fix typo (#360)

* docs: Fix typo

Author: xom9ikk

docs/Linking.md

@@ -70,7 +70,7 @@ protected List<ReactPackage> getPackages() {
 }
 ```
 ## Windows
-### Add `ReactNativeAsnycStorage` project to your solution.
+### Add `ReactNativeAsyncStorage` project to your solution.
 1. Open your solution in Visual Studio.
 2. Right click Solution icon in Solution Explorer > Add > Existing Project.
    Select `node_modules\@react-native-community\async-storage\windows\ReactNativeAsyncStorage\ReactNativeAsyncStorage.vcxproj`
@@ -79,4 +79,4 @@ protected List<ReactPackage> getPackages() {
 1. Right click main application project > Add > Reference...
   Check `ReactNativeAsyncStorage` from Solution Projects.
 2. Add `#include "winrt/ReactNativeAsyncStorage.h"` to `pch.h`.
-3. Add `PackageProviders().Append(winrt::ReactNativeAscynStorage::ReactPackageProvider());` before `InitializeComponent();` in `app.cpp`.
+3. Add `PackageProviders().Append(winrt::ReactNativeAsyncStorage::ReactPackageProvider());` before `InitializeComponent();` in `app.cpp`.