Update containerscanning.md

Add notes for on-premKB usage.

Author: cpottsbd

documentation/src/main/markdown/runningdetect/containerscanning.md

@@ -23,6 +23,8 @@ Execute Container Scan by adding the following to a run of [bd_product_short]:
 
 ### Limitations
  * Container scanning is limited to images of 100GB or less for hosted or local, on-prem services.
+	<note type="note">Additional hardware allocation might be required for the BDBA container when locally scanning large images.</note>
+ * Container scanning is not supported when running [bd_product_short] with an on-prem KB. For additional information see [hosted versus on-prem KB functionality ](https://documentation.blackduck.com/bundle/bd-hub/page/General/hostedKbVsOnPremKb.html).
 
 ## Invocation
  * To invoke a container scan, which executes in "Intelligent" mode by default, the following must be provided at a minimum: