fix: bg verses now show range of verses

app/lib/books/bg/chapters/16/verses/13.json

@@ -2,7 +2,7 @@
   "book_title": "Bhagavad-gītā As It Is",
   "chapter": 16,
   "verse": 13,
-  "reference": "Bg 16.13, Bg 16.14, Bg 16.15, Bg 16.13-15",
+  "reference": "Bg 16.13-15",
   "devanagari": "इदम् अद्य मया लब्धम् इमं प्राप्स्ये मनोरथम्\nइदम् अस्तीदम् अपि मे भविष्यति पुनर्धनम्\nअसौ मया हतः शत्रुर्हनिष्ये चापरान् अपि\nईश्वरो ऽहम् अहं भोगी सिद्धो ऽहं बलवान्सुखी\nआढ्यो ऽभिजनवान् अस्मि को ऽन्यो ऽस्ति सदृशो मया\nयक्ष्ये दास्यामि मोदिष्य इत्य् अज्ञानविमोहिताः",
   "transliteration": "idam adya mayā labdham\nimaṁ prāpsye manoratham\nidam astīdam api me\nbhaviṣyati punar dhanam\nasau mayā hataḥ śatrur\nhaniṣye cāparān api\nīśvaro 'ham ahaṁ bhogī\nsiddho 'haṁ balavān sukhī\nāḍhyo 'bhijanavān asmi\nko 'nyo 'sti sadṛśo mayā\nyakṣye dāsyāmi modiṣya\nity ajñāna-vimohitāḥ",
   "synonyms": [
@@ -278,5 +278,6 @@
     }
   ],
   "translation": "<b>The demoniac person thinks: \"So much wealth do I have today, and I will gain more according to my schemes. So much is mine now, and it will increase in the future, more and more. He is my enemy, and I have killed him; and my other enemy will also be killed. I am the lord of everything, I am the enjoyer, I am perfect, powerful and happy. I am the richest man, surrounded by aristocratic relatives. There is none so powerful and happy as I am. I shall perform sacrifices, I shall give some charity, and thus I shall rejoice.\" In this way, such persons are deluded by ignorance.</b>",
-  "purport": []
+  "purport": [],
+  "verse_end": 15
 }