Fix image tags and equation typo
Fix image tags and equation typo

NakamotoInstitute/nakamotoinstitute.org,NakamotoInstitute/nakamotoinstitute.org,NakamotoInstitute/nakamotoinstitute.org,NakamotoInstitute/nakamotoinstitute.org,NakamotoInstitute/nakamotoinstitute.org