fix: path names

tests/test_transcript_structure.py

+"""Tests the transcript structure generator module."""
+
 import pytest
 from transcript_structure import Generate_transcript_structure as Gts
 
 TEST_CSV_TITLE = './tests/resources/test_transcript_structure/Rik_5_Rp1_5_title.csv'
 TEST_CSV_NO_TITLE = './tests/resources/test_transcript_structure/Rik_5_Rp1_5_no_title.csv'
 
-GENE_COORDS = './tests/resources/RP1_RIK.gtf'
+GENE_COORDS = './tests/resources/test_transcript_structure/RP1_RIK.gtf'
 GENE_KEYS = ['Rp1', '1700034P13Rik']
 
 P_INTRON_0: float = 0