docs: update runtime required doc to be more clear

Author: lockwobr

docs/runtime_required.md

@@ -19,12 +19,13 @@ before the nodes that it targets are considered available for general use.
 
 # Details
 ## When is a node considered ready
-When all of the following conditions are true per node:
-1. All SCRs with `runtimeRequired: true` are complete
+When all of the following is true per node:
+1. All SCRs with `runtimeRequired: true` are complete (ie complete on all nodes)
 
 ## What happens happens when a node is considered ready
 1. The runtime required taint is removed from the node if it exists.
 
-
 # Why would you use runtime required
-This is useful when you want to gate other work behind the successful completion of some set of Skyhook Packages. This can be for security reasons or for scheduling.
+This is useful when you want to gate other work behind the successful completion of some set of Skyhook Packages. This can be for security reasons or for scheduling.
+
+**NOTE:** No additional toleration is required, skyhook auto tolerates this (env:`runtimeRequiredTaint`) taint.