added unit,timeout and docstring for readability

Author: Dreamstick9

benchmarks/benchmarks/analysis/hbond_analysis.py

@@ -1,3 +1,7 @@
+"""
+Benchmark for HydrogenBondAnalysis
+"""
+
 try:
     from MDAnalysis.analysis.hydrogenbonds.hbond_analysis import HydrogenBondAnalysis as HBA
     from MDAnalysisTests.datafiles import waterPSF , waterDCD
@@ -7,6 +11,13 @@
 import MDAnalysis
 
 class HydrogenBondAnalysisBenchmark:
+    """
+    It tests performance of hbond.run() across different
+    number of frames using waterPSF/waterDCD test files.
+    """
+
+    unit = "ms"
+    timeout = 60.0
     params = [2, 5, 10]
     param_names = ["n_frames"]