documentation(BLAZ-26909): FAB heading and api links updated

[SubathraKaliamoorthy]

Feature description

Need to update UG heading casing and API links in ASP.NET Core and ASP.NET MVC platform

Solution description

Update UG heading casing and API links for Floating Action Button.

Output screenshots

NA

Areas affected and ensured

None (New Component)

Test cases

NA

Test bed sample location

NA

Additional checklist

• Did you run the automation against your implementation? NA
• Is there any API name change? Yes.
• Is there any existing behavior change of other features due to this code change? No
• Does your new code introduce new warnings or binding errors? No
• Does your code pass all FxCop and StyleCop rules? Yes
• Did you record this case in the unit test or UI test? Yes