Resolve "annotate peaks"

Closes #47 (closed) Change Annotate peaks step to call reference from gencode gtf files instead of TxDb and org libraries.

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workflow/tests/test_annotate_peaks.py

@@ -41,4 +41,4 @@ def test_upsetplot_pairedend():
 def test_annotation_pairedend():
     annotation_file = test_output_path + 'ENCSR729LGA.chipseeker_annotation.tsv'
     assert os.path.exists(annotation_file)
-    assert utils.count_lines(annotation_file) >= 25494
+    assert utils.count_lines(annotation_file) >= 25466