* Add advanced concepts to about page Signed-off-by: Fanit Kolchina <[email protected]> * Tech review comments Signed-off-by: Fanit Kolchina <[email protected]> * Update about.md Co-authored-by: Andrew Ross <[email protected]> Signed-off-by: kolchfa-aws <[email protected]> * Update about.md Co-authored-by: Andrew Ross <[email protected]> Signed-off-by: kolchfa-aws <[email protected]> * Apply suggestions from code review Co-authored-by: Nathan Bower <[email protected]> Signed-off-by: kolchfa-aws <[email protected]> --------- Signed-off-by: Fanit Kolchina <[email protected]> Signed-off-by: kolchfa-aws <[email protected]> Co-authored-by: Andrew Ross <[email protected]> Co-authored-by: Nathan Bower <[email protected]>