fix documentation build

[Roger-luo]

No description provided.

[codecov]

Codecov Report

Merging #37 (c07aa56) into master (c71c3d6) will increase coverage by 0.86%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #37      +/-   ##
==========================================
+ Coverage   89.03%   89.89%   +0.86%     
==========================================
  Files           5        5              
  Lines         310      287      -23     
==========================================
- Hits          276      258      -18     
+ Misses         34       29       -5     

Impacted Files	Coverage Δ
src/reorder.jl	75.00% <0.00%> (-1.75%)	⬇️
src/utils.jl	85.71% <0.00%> (-0.50%)	⬇️
src/bit_str.jl	93.69% <0.00%> (-0.28%)	⬇️
src/operations.jl	89.47% <0.00%> (+1.81%)	⬆️
src/iterate_control.jl	97.22% <0.00%> (+4.53%)	⬆️

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[Roger-luo]

I'll just go ahead to merge this to see the effects