Updates to Serverless page (#3962)

Detail the compute resources defaults included in the environment.
Closes #3954

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Co-authored-by: Rebecca Dimock <[email protected]>

Author: abbycross

docs/guides/serverless.mdx

@@ -15,12 +15,20 @@ Premium users can build, deploy, and run their workloads remotely on classical c
 
 ## When should I use Qiskit Serverless?
 
-Qiskit Serverless helps manage classical and quantum resources across the entire [Qiskit pattern](./intro-to-patterns) workflow. This includes some of the following examples:
+Qiskit Serverless helps manage classical and quantum resources across the entire [Qiskit patterns](./intro-to-patterns) workflow. This includes some of the following examples:
 
 - Parallelizing classical tasks, such as pre-processing and post-processing
 - Persisting long-running workloads in the cloud, even if your laptop is turned off
 - Deploying reusable programs
 
+## What is included?
+
+The following compute resources are included by default in the Qiskit Serverless environment. Users can contact [support](/docs/support) to increase any of these.
+
+- 16 vCPU cores
+- 64GB RAM
+- Maximum of two active jobs per user at any one time
+
 ## Install Qiskit Serverless
 
 To use Qiskit Serverless on IBM Quantum Platform, install the following packages: