Add Bitcoin blockchain analysis tutorial (github#1176)

* Add blockchain tutorial

* Unnecessary sentence

* minor fix

* Duplicate

* caggs

* Quick fix

* Minor changes

* Apply suggestions from review

Co-authored-by: Charis <26616127+charislam@users.noreply.github.com>

* Apply suggestions from review

Co-authored-by: Charis <26616127+charislam@users.noreply.github.com>

* Apply suggestions from review

Co-authored-by: Ryan Booz <ryan@timescale.com>

* MInor fix

* Fix image

* Reorganize caggs and hyperfunctions sections

* Add blog link

* Anchor links

* Grammar

Co-authored-by: Charis <26616127+charislam@users.noreply.github.com>

* Fix sql code

* Remove text

* Add signup callout

* Minor fix

* Add tabs to SQL code blocks

* Fix download file

Co-authored-by: Lana Brindley <github@lanabrindley.com>
Co-authored-by: Charis <26616127+charislam@users.noreply.github.com>
Co-authored-by: Ryan Booz <ryan@timescale.com>