Fix markdown linting issues - add blank lines around lists

Co-authored-by: BillWagner <[email protected]>

Author: Copilot

docs/fsharp/language-reference/nameof.md

@@ -98,6 +98,7 @@ handleEvent "OrderCreated" "Order #123" // matches first case
 ```
 
 Using `nameof` instead of string literals like `"OrderCreated"` provides several benefits:
+
 - If you rename a discriminated union case, the pattern automatically updates.
 - The compiler prevents typos by ensuring the symbol exists.
 - Your code remains consistent during refactoring.

docs/fsharp/language-reference/pattern-matching.md

@@ -260,6 +260,7 @@ handleEvent "OrderShipped" "Order #123" // matches second case
 ```
 
 This approach is better than using string literals (like `"OrderCreated"`) because:
+
 - If you rename `OrderCreated` to `OrderPlaced`, the pattern automatically updates.
 - The compiler ensures that the symbol exists, preventing typos.
 - Your code remains consistent when refactoring.