Timeseries docs fix

[chayim]

fixes #1875

[codecov-commenter]

Codecov Report

Merging #1877 (79b99e0) into master (41cef47) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1877      +/-   ##
==========================================
- Coverage   93.60%   93.60%   -0.01%     
==========================================
  Files          76       76              
  Lines       16268    16267       -1     
==========================================
- Hits        15228    15227       -1     
  Misses       1040     1040              

Impacted Files	Coverage Δ
tests/test_graph.py	89.88% <0.00%> (-0.04%)	⬇️
tests/test_cluster.py	98.16% <0.00%> (ø)

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