Update LH's Readme

Author: YuryHrytsuk

charts/longhorn/README.md

@@ -9,16 +9,22 @@ LH is using networking for keeping replicas in sync and IO-heavy workloads may o
 ### How does LH decide which node's disk to use as storage
 
 It depends on configuration. There are 3 possibilities:
-* https://longhorn.io/kb/tip-only-use-storage-on-a-set-of-nodes/#deploy-longhorn-components-only-on-a-specific-set-of-nodes
+* https://longhorn.io/kb/tip-only-use-storage-on-a-set-of-nodes/
+
+As long as we use `Create Default Disk on Labeled Nodes` it relies on `node.longhorn.io/create-default-disk` kubernetes node's label
+
+Source: https://longhorn.io/docs/1.8.1/nodes-and-volumes/nodes/default-disk-and-node-config/#customizing-default-disks-for-new-nodes
 
 ### Will LH pick up storage from a newly-added node
 
 By default LH will use storage on all (newly created as well) Nodes where it runs. If `createDefaultDiskLabeledNodes` is configured, then it depends on label of the node
 
-https://longhorn.io/kb/tip-only-use-storage-on-a-set-of-nodes/#deploy-longhorn-components-only-on-a-specific-set-of-nodes
+Source:
+* https://longhorn.io/kb/tip-only-use-storage-on-a-set-of-nodes/
+* https://longhorn.io/docs/1.8.1/nodes-and-volumes/nodes/default-disk-and-node-config/#customizing-default-disks-for-new-nodes
 
 ### Can workloads be run on nodes where there is no LH
 
 They can as long as LH is not bound to specific nodes via `nodeSelector` or `systemManagedComponentsNodeSelector` settings. If LH is configure to run on specific nodes, then workloads can only be run on these nodes only.
 
-Source: https://longhorn.io/kb/tip-only-use-storage-on-a-set-of-nodes/#deploy-longhorn-components-only-on-a-specific-set-of-nodes
+Source: https://longhorn.io/kb/tip-only-use-storage-on-a-set-of-nodes/