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- modified book.json

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book.json

-{
-    "styles": {
-        "website": "styles/website.css",
-        "ebook": "styles/ebook.css",
-        "pdf": "styles/pdf.css",
-        "mobi": "styles/mobi.css",
-        "epub": "styles/epub.css"
-     }
+{
+    "styles": {
+        "website": "styles/website.css",
+        "ebook": "styles/ebook.css",
+        "pdf": "styles/pdf.css",
+        "mobi": "styles/mobi.css",
+        "epub": "styles/epub.css"
+     }
 }
\ No newline at end of file