Documentation URL

[desaiwangBH]

Description

Need to call DocumentationURL to generate URL instead of using a constant string.

Excel_UI/Excel_UI/Ribbon/Ribbon.cs

Lines 57 to 59 in 05a942c

	<button id='xlwiki' onAction='OpenLink' size='large' label='BHoM Excel Wiki' imageMso='Help' tag='https://github.com/BHoM/Excel_Toolkit/wiki' supertip='Go to the BHoM Excel plugin wiki to view help documentation relating to this plugin.' />
	<button id='mainwiki' onAction='OpenLink' label='BHoM Wiki' imageMso='Help' tag='https://bhom.xyz/documentation/' supertip='Go to the core BHoM wiki to view documentation relating the BHoM.' />
	<button id='bhomxyz' onAction='OpenLink' imageMso='GetExternalDataFromWeb' label='bhom.xyz' tag='https://bhom.xyz' supertip='Visit the BHoM website.' />