change specification to specs + remove some articles + add caption fo…

…r the animation

Signed-off-by: NikitaSkrynnik <nikita.skrynnik@xored.com>

content/docs/concepts/specs.md

@@ -0,0 +1,14 @@
++++
+title = "Specs"
+description = "Concepts of NSM Capabilities"
+weight = 5
+date = "2023-06-24"
++++
+
+## Specs
+
+Since NSM can run in any environment, here is described only concepts of the available functionality.
+
+- [Healing](../specs/healing)
+- [Datapath Healing](../specs/datapath_healing)
+- [Connection Monitoring API](../specs/monitoring)

content/docs/concepts/specification/healing.md → content/docs/concepts/specs/healing.md

@@ -43,7 +43,7 @@ Healing is an indispensable tool for organizations leveraging NSM, enabling them
 
 ## References
 
-- [NSM Monitoring API](../../specification/monitoring)
+- [NSM Monitoring API](../../specs/monitoring)
 - [Code implementation](https://github.com/networkservicemesh/sdk/tree/release/v1.10.0/pkg/networkservice/common/heal)
 - [Runnable k8s examples](https://github.com/networkservicemesh/deployments-k8s/tree/release/v1.10.0/examples/heal)
 - [See other concepts](../)

content/docs/concepts/specification/monitoring.md → content/docs/concepts/specs/monitoring.md

@@ -27,11 +27,12 @@ Each NSM component montors connections of the next component in the chain. If th
 
 **DELETE:** Monitor Connection Server sends event with this type when the connection has been closed.
 
-### An example of UPDATE event
+### Example of UPDATE event
 
 ![update-event](/img/concepts/specification/monitoring/update-event.svg)
+*Diagram 1: an example of UPDATE event in NSM*
 
-### An example of INITIAL_STATE_TRANSFER and DELETE event
+### Example of INITIAL_STATE_TRANSFER and DELETE event
 
 ![initial-transfer-and-delete-event](/img/concepts/specification/monitoring/initial-transfer-and-delete-event.svg)