diff --git a/docs/FAQ.md b/docs/FAQ.md
index f993c63..a39c217 100644
--- a/docs/FAQ.md
+++ b/docs/FAQ.md
@@ -1,6 +1,6 @@
 ---
 title: FAQ
-nav_order: 9
+nav_order: 11
 ---
 
 ### I occasionally get a NullReferenceException, what's wrong?
diff --git a/docs/Glossary.md b/docs/Glossary.md
index ea3e4b2..2a6a8b7 100644
--- a/docs/Glossary.md
+++ b/docs/Glossary.md
@@ -1,6 +1,6 @@
 ---
 title: Glossary
-nav_order: 8
+nav_order: 10
 ---
 
 |Definition|Synonyms|Meaning|
diff --git a/docs/Implementation.md b/docs/Implementation.md
index 989d968..2a4acfd 100644
--- a/docs/Implementation.md
+++ b/docs/Implementation.md
@@ -1 +1,6 @@
-TODO steps for creating a new implementation
\ No newline at end of file
+---
+title: Creating an implementation
+nav_order: 8
+---
+
+TODO 
\ No newline at end of file
diff --git a/docs/Interfaces.md b/docs/Interfaces.md
index c60d17c..adff2d0 100644
--- a/docs/Interfaces.md
+++ b/docs/Interfaces.md
@@ -3,6 +3,14 @@ title: Common interfaces
 nav_order: 5
 ---
 
+Clients have a common interface implementation to allow a shared code base to use the same functionality for different exchanges. The interface is implemented at the `API` level, for example:
+```csharp
+var binanceClient = new BinanceClient();
+ISpotClient spotClient = binanceClient.SpotApi.CommonSpotClient;
+IFuturesClient futuresClient = binanceClient.UsdFuturesApi.CommonFuturesClient;
+
+```
+
 ## ISpotClient
 TODO 
 
diff --git a/docs/Migration Guide.md b/docs/Migration Guide.md
index b6ef573..7a0e662 100644
--- a/docs/Migration Guide.md	
+++ b/docs/Migration Guide.md	
@@ -1,6 +1,6 @@
 ---
 title: Migrate v4 to v5
-nav_order: 7
+nav_order: 9
 ---
 
 Changes from 4.x to 5.x:
diff --git a/docs/RateLimiter.md b/docs/RateLimiter.md
index b6c5121..bf4d9d8 100644
--- a/docs/RateLimiter.md
+++ b/docs/RateLimiter.md
@@ -1,4 +1,4 @@
 ---
 title: Rate limiting
-nav_order: 6
+nav_order: 7
 ---