update docs for amazon bedrock binary embeddings

Author: anatolzak

content/providers/01-ai-sdk-providers/08-amazon-bedrock.mdx

@@ -453,6 +453,10 @@ The following optional settings are available for Bedrock Titan embedding models
 
   Flag indicating whether or not to normalize the output embeddings. Defaults to true.
 
+- **embeddingType** _'float' | 'binary'_
+
+  The type of embedding to return. Defaults to 'float'. Binary embeddings are only supported in amazon.titan-embed-text-v2:0.
+
 ### Model Capabilities
 
 | Model                          | Default Dimensions | Custom Dimensions   |