added note about shared linodes and added high mem dedi cpu addition

Author: hzoppetti

openapi.yaml

@@ -15641,16 +15641,19 @@ components:
 
               * nanode - Nanode instances are good for low-duty workloads,
                 where performance isn't critical. **Note:** As of June 16th, 2020, Nanodes became
-                1 GB Linodes in the Cloud Manager, however, the API, CLI, and billing
+                1 GB Linodes in the Cloud Manager, however, the API, the CLI, and billing will
                 continue to refer to these instances as Nanodes.
-              * standard - Standard Shared instances are good for low and medium-duty workloads and
-                are a good mix of performance, resources, and price.
+              * standard - Standard Shared instances are good for medium-duty workloads and
+                are a good mix of performance, resources, and price. **Note:** As of June 16th, 2020,
+                Standard Linodes in the Cloud Manager became Shared Linodes, however, the API, the CLI, and
+                billing will continue to refer to these instances as Standard Linodes.
               * dedicated - Dedicated CPU instances are good for full-duty workloads
                 where consistent performance is important.
               * gpu - Linodes with dedicated NVIDIA Quadro ® RTX 6000 GPUs accelerate highly
                 specialized applications such as machine learning, AI, and video transcoding.
               * highmem - High Memory instances favor RAM over other resources, and can be
                 good for memory hungry use cases like caching and in-memory databases.
+                All High Memory plans contain dedicated CPU cores.
           enum:
           - nanode
           - standard