Documentation updates (#4)

* Added Manifest in benchmarks (reproducibility)

* [BUG] Fixed tests when #threads not a power of 2

* Enable transpose as well

* [BUG] Tranpsose now works like Adjoint

* [DOCS] Example, layout & comments

* [BUG] Fixed issue with Adjoint/Transpose

* [COVERAGE] 100%

Co-authored-by: Nikos Pitsianis <pitsianis@yahoo.com>

Author: fcdimitr