updating Version to 1.0.0

Updating README.md

FastOptions/FastOptions.csproj

@@ -4,7 +4,7 @@
         <TargetFramework>net6.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
-        <Version>1.0.0-rc</Version>
+        <Version>1.0.0</Version>
         <Title>FastOptions</Title>
         <Authors>Sermo</Authors>
         <Description>A significantly faster drop in replacement for the default OptionsManager provided by ASP.NET core.</Description>

README.md

@@ -1,2 +1,15 @@
 # FastOptions
 A significantly faster drop in replacement for the default OptionsManager provided by ASP.NET core.
+
+## Background
+The default OptionsManager implementation for IOptionsSnapshot<> has significant performance deficiencies.
+This library provides a workaround for these deficiencies by attempting to utilize IOptionsMonitor<> when possible.
+The library falls back to OptionsManager when IOptionsMonitor<> is not available.
+
+[The performance issue is being tracked here.](https://github.com/dotnet/runtime/issues/53793)
+
+## Usage
+```csharp
+services.AddFastOptions();
+```
+You can then inject IOptionsSnapshot<> as you normally would.