Fix typos in documentation and JSON spec (#1530)

Description:  
This pull request corrects minor typos in two files:
- In packages/tasks/src/tasks/placeholder/spec/output.json, the word
"outputed" was corrected to "outputted" in the description field.
- In packages/tasks/src/tasks/reinforcement-learning/about.md, the word
"evalute" was corrected to "evaluate" in the explanation of the training
cycle.

Author: vtjl10

packages/tasks/src/tasks/placeholder/spec/output.json

@@ -9,7 +9,7 @@
 		"properties": {
 			"meaningful_output_name": {
 				"type": "string",
-				"description": "TODO: Describe what is outputed by the inference here"
+				"description": "TODO: Describe what is outputted by the inference here"
 			}
 		},
 		"required": ["meaningfulOutputName"]

packages/tasks/src/tasks/reinforcement-learning/about.md

@@ -48,7 +48,7 @@ Observations and states are the information our agent gets from the environment.
 
 Inference in reinforcement learning differs from other modalities, in which there's a model and test data. In reinforcement learning, once you have trained an agent in an environment, you try to run the trained agent for additional steps to get the average reward.
 
-A typical training cycle consists of gathering experience from the environment, training the agent, and running the agent on a test environment to obtain average reward. Below there's a snippet on how you can interact with the environment using the `gymnasium` library, train an agent using `stable-baselines3`, evalute the agent on test environment and infer actions from the trained agent.
+A typical training cycle consists of gathering experience from the environment, training the agent, and running the agent on a test environment to obtain average reward. Below there's a snippet on how you can interact with the environment using the `gymnasium` library, train an agent using `stable-baselines3`, evaluate the agent on test environment and infer actions from the trained agent.
 
 ```python
 # Here we are running 20 episodes of CartPole-v1 environment, taking random actions