Re-organized the metrics specification layout. Kept the current content as-is.
Re-organized the metrics specification layout. Kept the current content as-is.

Signed-off-by: chdavid <c478bd67d3e631a041cfcf10c95eaa528478545f@ca.ibm.com>

Arjun-Sharma1/microprofile-metrics,Channyboy/microprofile-metrics,raymondlam/microprofile-metrics,pilhuhn/microprofile-metrics,raymondlam/microprofile-metrics,pilhuhn/microprofile-metrics,Channyboy/microprofile-metrics,Arjun-Sharma1/microprofile-metrics