Update test plan to use the new test plan template

Author: sarveshr7

keps/sig-network/2593-multiple-cluster-cidrs/README.md

@@ -578,26 +578,35 @@ The list of current valid types is
 
 ### Test Plan
 
-#### Unit Tests and Benchmarks
+[X] I/we understand the owners of the involved components may require updates to
+existing tests to make this code solid enough prior to committing the changes necessary
+to implement this enhancement.
 
--   Ensure that the controller scales to ~5,000 nodes -- memory usage and
-    reasonable allocation times
+##### Prerequisite testing updates
 
-#### Integration Tests
+N/A
+
+##### Unit tests
+
+- Ensure that the controller scales to ~5,000 nodes -- memory usage and
+    reasonable allocation times. 
+- k8s.io/kubernetes/pkg/controller/nodeipam: 06/21/2022 - 51.2
+
+##### Integration tests
 
 -   Verify finalizers and statuses are persisted appropriately
 -   Test watchers
 -   Ensure that the controller handles the feature being disabled and re-enabled:
     -   Test with some Nodes already having `PodCIDR` allocations
 
-#### End-to-End Tests
+##### e2e tests
 
 -   Run through some sample workflows. Just a few for example:
     -   Adding a node
     -   Adding a ClusterCIDRConfig
     -   Deleting a ClusterCIDRConfig that is in use
 -   Run through the [user stories](#user-stories):
-    -   Expand the ClusterCIDR (existing nodes without alloations are
+    -   Expand the ClusterCIDR (existing nodes without allocations are
         allocated and new nodes also get ranges.
     -   Use `NodeSelector` to allocate different sized CIDRs to different nodes.
     -   Create and use discontiguous ranges.