Update to .BD entry to reflect current namespace

[dnsguru]

Update *.bd for Bangladesh .bd to reflect subdomain structure currently in place
The IANA root DB LINK Provides a link to the URL for registration services: of http://domainreg.btcl.com.bd/ which redirects to https://bdia.btcl.com.bd/domain/domainQueryForBuy/searchDomain.jsp

This site lists the following

Domain Extension	Description
.com.bd	Intended for Commercial entities and purposes
.org.bd	Intended for Not-for-profit entities
.info.bd	Intended for personal names, only individuals can register
.net.bd	Restricted to Bangladeshi Internet Service Provider's infrastructure
.edu.bd	Restricted to Bangladeshi Educational institute, college and universities
.ac.bd	Restricted to Bangladeshi Academic institute, schools and coaching center
.gov.bd	Restricted to Government

Their registration system also lists .co.bd and .gov.bd, and their root-listed DNS for the .bd zone shows nameservers under dns.bd with direct glue records.

Because the chain of authoritative reference begins at the IANA root DB and flows out to the respective page listing the stub zones, it is considered to be authoritative for the .bd zone, and the etld space within the .bd zone are deemed to be accurate and correct.