fix(reader): Library in the nav, breadcrumbs in the chapter

marketing-site/pages/read/real-estate.jsx

@@ -1,6 +1,7 @@
 import { useEffect, useMemo } from "react";
 import Head from "next/head";
 import ReaderNav from "../../components/reader/ReaderNav";
+import ReaderCrumbs from "../../components/reader/ReaderCrumbs";
 import ReaderFooter from "../../components/reader/ReaderFooter";
 import WorkflowBlock from "../../components/reader/WorkflowBlock";
 import ChapterOutline from "../../components/reader/ChapterOutline";
@@ -45,10 +46,18 @@ export default function RealEstateChapter() {
         <meta name="viewport" content="width=device-width, initial-scale=1" />
       </Head>
 
-      <ReaderNav chapterName={CHAPTER.vertical} />
+      <ReaderNav here="chapter" />
 
       <main>
         <article className="chapter-page">
+          <div className="wrap reader-wide">
+            <ReaderCrumbs
+              items={[
+                { href: "/read", label: "Library" },
+                { label: CHAPTER.vertical, current: true },
+              ]}
+            />
+          </div>
           <div className="wrap reader-wide chapter-shell">
             <ChapterOutline
               groups={outline}