[Feature] Add links to rules documentation

[ErikEJ]

Is your feature request related to a problem? Please describe.
I see rule violations but do not understand the reason for the rule/violation

Describe the solution you'd like
Build output should contain a link to a web page documenting the rule

Additional context
Sample output from the rules I publish (makes a nice clickable link in the VS build output pane)

1>C:\Code\Github\SqlServer.Rules\TSQLSmellsTest\SETs.sql(10,1): warning SML013: Smells : CONCAT_NULL_YIELDS_NULL should be on. (https://github.com/ErikEJ/SqlServer.Rules/blob/master/docs/CodeSmells/SML013.md)

[ErikEJ]

There are web pages documenting the rules: https://learn.microsoft.com/en-us/previous-versions/visualstudio/visual-studio-2010/dd193296(v=vs.100)