[Docs] Add blank line before lists so they render (#503)

docs/servers/completions.md

@@ -87,6 +87,7 @@ public function getUserProfile(
 ```
 
 **Provider Resolution:**
+
 - **Class strings** (`Provider::class`) → Resolved from PSR-11 container
 - **Instances** (`new Provider()`) → Used directly
 - **Values** (`['a', 'b']`) → Wrapped in `ListCompletionProvider`

docs/servers/prompts.md

@@ -100,6 +100,7 @@ makes the prompt handler throw.
 ### Error Handling
 
 Prompt handlers can throw any exception, but the type determines how it's handled:
+
 - **`PromptGetException`**: Converted to JSON-RPC error response with the actual exception message
 - **Any other exception**: Converted to JSON-RPC error response, but with a generic error message
 

docs/servers/registration.md

@@ -6,6 +6,7 @@ registry somehow. There are three ways to get it there, and they mix freely.
 ## Attribute-Based Discovery
 
 **Advantages:**
+
 - Declarative and readable
 - Automatic parameter inference
 - DocBlock integration
@@ -25,6 +26,7 @@ Register MCP elements programmatically without using attributes. The handler is
 any PHP callable.
 
 **Advantages:**
+
 - Fine-grained control
 - Runtime configuration
 - Conditional registration