Fix entries for parameter blocks documentation (#48)

Author: tangent-vector

_data/documentation.yaml

@@ -65,5 +65,5 @@ tutorials:
     link_label: "Coming from HLSL"
   - title: "Using Slang Parameter Blocks"
     description: "Learn how to use Slang's Parameter Block feature in your shader codebase, and to streamline use of the Slang reflection API when using this feature."
-    link_url: "/docs/parameter-blocks"
+    link_url: "/docs/using-parameter-blocks/"
     link_label: "Using Slang Parameter Blocks"

docs/parameter-blocks.md

@@ -2,7 +2,7 @@
 title: Using Slang Parameter Blocks
 layout: page
 description: A guide to using Slang's Parameter Block feature
-permalink: "/docs/shader-cursors/"
+permalink: "/docs/using-parameter-blocks/"
 intro_image_absolute: true
 intro_image_hide_on_mobile: false
 ---