TXT is a Sender Policy Framework (SPF) record which commonly used for email services and add what is the server given. TXT record historically have been used to contain human readable information about server, network, data center and other.
Step 2 : Select TXT from the drop down box on the type section.
Just blank the Name and RDATA section as it default.
Step 3 : After complete fill in the data, click Add Record and it will display as below.