Web.config Transformation Syntax for Web Application Project Deployment
; https://learn.microsoft.com/en-us/previous-versions/aspnet/dd465326(v=vs.110)

Web Deployment: Web.Config Transformation
 - Step 1: Creating a “Staging” Configuration on your developer box 
 - Step 2: Adding a “Staging” Web.Config Transform file to your project 
 - Step 3: Writing simple transforms to change developer box connection string settings into “Staging” environment settings 
 - Step 4: Generating a new transformed web.config file for “Staging” environment from command line 
 - Step 5: Generating a new transformed web.config file for “Staging” environment from VS UI 
 - Step 6: Understanding various available web.config Transforms and Locators 
 - Step 7: Using Web.config transformation toolset for config files in sub-folders within the project 
; http://vishaljoshi.blogspot.com/2009/03/web-deployment-webconfig-transformation_23.html

XDT (web.config) Transforms in non-web projects
; https://devblogs.microsoft.com/dotnet/xdt-web-config-transforms-in-non-web-projects-2/