Fewer pages in docs

[haampie]

And an example about B-inner product

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (b462c09) 95.17% compared to head (6912bb9) 95.17%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #133 +/- ## ======================================= Coverage 95.17% 95.17% ======================================= Files 10 10 Lines 809 809 ======================================= Hits 770 770 Misses 39 39 ```

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