fix(whatsapp): support text header parameters - #65

Changed pages include:

• functions/applyrotationtransform.html - view
• functions/applytwiliomediafilename.html - view
• functions/buildtwilioprocessedparams.html - view
• functions/buildwhatsappprocessedparams.html - view
• functions/calculatecenteroffset.html - view
• functions/clamp.html - view
• functions/coercetodate.html - view
• functions/convertsecondstotimeunit.html - view
• functions/createtypingindicator.html - view
• functions/debounce.html - view

There are more changes not included in the list