Use Note which looks better in nuget.org

Author: kzu

readme.md

@@ -219,7 +219,7 @@ This is a sort of typed [Memento pattern](https://grokipedia.com/page/Memento_pa
 the Orleans state persistence mechanisms to read and write the actor state without requiring 
 any additional code from the developer. 
 
-> [!IMPORTANT]
+> [!NOTE]
 > This code is automatically guaranteed to be in sync with the actor's properties and fields, 
 > since it's generated at compile time. 
 
@@ -380,7 +380,7 @@ partial class Account
 }
 ```
 
-> [!IMPORTANT]
+> [!NOTE]
 > Note how there's no dynamic dispatch here 💯.
 
 An important colorary of this project is that the design of a library and particularly 
@@ -494,7 +494,7 @@ Note how the grain is a partial class, so you can add your own methods to it. Th
 code also uses whichever method names (and overloads) you used in your actor class to handle 
 the incoming messages, so it doesn't impose any particular naming convention.
 
-> [!IMPORTANT]
+> [!NOTE]
 > Note how there's no dynamic dispatch here either 💯.
 
 Since the grain metadata/registry is generated by a source generator, and source generators