Add new Performance Analyzer metrics and fix table formatting (#5182)

* fixed problem with table and added new metrics

Signed-off-by: Heather Halter <[email protected]>

* fix formatting

Signed-off-by: Heather Halter <[email protected]>

* fixed table formatting

Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Signed-off-by: Heather Halter <[email protected]>

* Update _monitoring-your-cluster/pa/reference.md

Co-authored-by: Naarcha-AWS <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update _monitoring-your-cluster/pa/reference.md

Co-authored-by: Naarcha-AWS <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update _monitoring-your-cluster/pa/reference.md

Co-authored-by: Naarcha-AWS <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update _monitoring-your-cluster/pa/reference.md

Co-authored-by: Naarcha-AWS <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update _monitoring-your-cluster/pa/reference.md

Co-authored-by: Naarcha-AWS <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update _monitoring-your-cluster/pa/reference.md

Co-authored-by: Naarcha-AWS <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Fixed the intro statement

Signed-off-by: Heather Halter <[email protected]>

* Apply suggestions from code review

Editorial corrections.

Co-authored-by: Nathan Bower <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Added a description under the Dimensions: N/A section and a couple editorial nits.

Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Signed-off-by: Heather Halter <[email protected]>

* Update _monitoring-your-cluster/pa/reference.md

Co-authored-by: Nathan Bower <[email protected]>
Signed-off-by: Heather Halter <[email protected]>

* Update reference.md

Removed search backpressure info, as requested; removed info marked with TBD.

Signed-off-by: Heather Halter <[email protected]>

---------

Signed-off-by: Heather Halter <[email protected]>
Signed-off-by: Heather Halter <[email protected]>
Co-authored-by: Naarcha-AWS <[email protected]>
Co-authored-by: Nathan Bower <[email protected]>