Add basic usage example

README.md

@@ -19,7 +19,17 @@ dotnet add package Notion.Net
 
 ## Usage
 
-Todo
+> Before getting started, you need to [create an integration](https://www.notion.com/my-integrations) and find the token. You can learn more about authorization [here](https://developers.notion.com/docs/authorization).
+
+Import and initialize the client using the integration token created above.
+
+![image](https://user-images.githubusercontent.com/18693839/119268863-79925b00-bc12-11eb-92cb-d5a9a8c57fdc.png)
+
+Make A request to any Endpoint. For example you can call below to fetch the paginated list of users.
+
+![image](https://user-images.githubusercontent.com/18693839/119268924-ae9ead80-bc12-11eb-9d1a-925267896d9e.png)
+
+
 
 ## Contribution Guideline
 

examples/list-users/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Threading.Tasks;
+using System.Linq;
+using Notion.Client;
+
+namespace list_users
+{
+    class Program
+    {
+        static async Task Main(string[] args)
+        {
+            var client = new NotionClient(new ClientOptions
+            {
+                AuthToken = "<Token>"
+            });
+
+            var usersList = await client.Users.ListAsync();
+
+            Console.WriteLine(usersList.Results.Count());
+        }
+    }
+}

examples/list-users/list-users.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net5.0</TargetFramework>
+    <RootNamespace>list_users</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Notion.Net" Version="0.2.0-beta" />
+  </ItemGroup>
+
+</Project>