Adds figures for manager-based and direct RL environments (#1337)

# Description
Adding reference flow diagram for manager-based and direct RL task
workflows


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## Type of change

- Documentation Change



## Checklist

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- [x] I have made corresponding changes to the documentation
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---------
Signed-off-by: OOmotuyi <159472067+OOmotuyi@users.noreply.github.com>

docs/source/overview/core-concepts/task_workflows.rst

@@ -36,6 +36,10 @@ or when implementing complex logic that is difficult to decompose into separate
 Manager-Based Environments
 --------------------------
 
+.. image:: ./Manager-basedTaskWorkflow.jpg
+      :width: 100%
+      :alt: Manager-based Task Workflow
+
 A majority of environment implementations follow a similar structure. The environment processes the input actions,
 steps through the simulation, computes observations and reward signals, applies randomization, and resets the terminated
 environments. Motivated by this, the environment can be decomposed into individual components that handle each of these tasks.
@@ -88,6 +92,10 @@ specifications.
 Direct Environments
 -------------------
 
+.. image:: ./Direct-basedTaskWorkflow.jpg
+      :width: 100%
+      :alt: Direct-based Task Workflow
+
 The direct-style environment aligns more closely with traditional implementations of environments,
 where a single script directly implements the reward function, observation function, resets, and all the other components
 of the environment. This approach does not require the manager classes. Instead, users are provided the complete freedom