[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

docs/guide-bedtools.md

@@ -133,4 +133,3 @@ bedtools intersect -wa -a A.bed -b B.bed -f 0.7 > out.bed
 cov = bf.coverage(A, B)
 out = A.loc[cov['coverage'] / (cov['end'] - cov['start']) ) >= 0.70]
 ```
-