How to load checklist task notes(Task Details) though HDL load in bold format

Summary:

Trying to update checklist task notes(Task Details) through HSDL and want to highlight few lines in bold. 

Content (required):

Trying to update checklist task notes(Task Details) through HSDL and want to highlight few lines in bold. I have created a HSDL template and updating checklist task notes, want to highlight few lines in bold as the checklist task notes 

Version (include the version you are using, if applicable):

23C

Code Snippet (add any code snippets that support your topic, if applicable):

Below is the Loaded HSDL Template, looking for syntax or HTML code to highlight few lines in bold