Add RDI API reference page and update layout for integration documentation

Author: spicy-sauce

content/integrate/redis-data-integration/reference/api/api-reference.md renamed to content/integrate/redis-data-integration/reference/api-reference.md

@@ -5,7 +5,7 @@
     <title>Redis Data Integration API</title>
     {{ partial "scss.html" (dict "path" "scss/style.scss") }}
     {{ partial "css.html" (dict "path" "css/index.css") }}
-    {{ $relref :=  printf "%s%s" .Site.BaseURL "/operate/rc/api/" }}
+    {{ $relref :=  printf "%s%s" .Site.BaseURL "/integrate/redis-data-integration/reference/" }}
     <!-- needed for adaptive design -->
     <!-- <link rel="preload" href="/public/scss/style.min.65324e4de191c292ee8b6f4f0ebf01320e8c4bc8623b04e9dfad322ebb490b31.css" as="style">
     <link href="/public/scss/style.min.65324e4de191c292ee8b6f4f0ebf01320e8c4bc8623b04e9dfad322ebb490b31.css" rel="stylesheet" integrity="">