* Adding scenarios in the concepts page
* formating fixes
* restructuring doc
* adding reference to scenarios section
* rephrasing the statement
* fix typo
* adding the note about helper method limitation
* more restructuring
* adding more languages as how to create trace context
* Update W3C-traces.md
* Update README.md
* Added C# snippets. Added ochttp instructions at right place. Fix typo.
* Fix broken link. Change the title reference in main readme. Fix typos.
* changing tracing context to trace context
* fix minor formatting fix
Co-authored-by: Mark Fussell <mfussell@microsoft.com>