fix: bg verses now show range of verses

app/lib/books/bg/chapters/01/verses/37.json

@@ -2,7 +2,7 @@
   "book_title": "Bhagavad-gītā As It Is",
   "chapter": 1,
   "verse": 37,
-  "reference": "Bg 1.37, Bg 1.38, Bg 1.37-38",
+  "reference": "Bg 1.37-38",
   "devanagari": "यद्य् अप्य् एते न पश्यन्ति लोभोपहतचेतसः\nकुलक्षयकृतं दोषं मित्रद्रोहे च पातकम्\nकथं न ज्ञेयम् अस्माभिः पापाद् अस्मान्निवर्तितुम्\nकुलक्षयकृतं दोषं प्रपश्यद्भिर्जनार्दन",
   "transliteration": "yady apy ete na paśyanti\nlobhopahata-cetasaḥ\nkula-kṣaya-kṛtaṁ doṣaṁ\nmitra-drohe ca pātakam\nkathaṁ na jñeyam asmābhiḥ\npāpād asmān nivartitum\nkula-kṣaya-kṛtaṁ doṣaṁ\nprapaśyadbhir janārdana",
   "synonyms": [
@@ -166,5 +166,6 @@
   "translation": "<b>O Janārdana, although these men, overtaken by greed, see no fault in killing one's family or quarreling with friends, why should we, with knowledge of the sin, engage in these acts?</b>",
   "purport": [
     "A <i>kṣatriya </i>is not supposed to refuse to battle or gamble when he is so invited by some rival party. Under such obligation, Arjuna could not refuse to fight because he was challenged by the party of Duryodhana. In this connection, Arjuna considered that the other party might be blind to the effects of such a challenge. Arjuna, however, could see the evil consequences and could not accept the challenge. Obligation is actually binding when the effect is good, but when the effect is otherwise, then no one can be bound. Considering all these pros and cons, Arjuna decided not to fight."
-  ]
+  ],
+  "verse_end": 38
 }