diff --git a/mkdocs.yml b/mkdocs.yml
index 876a653..e74feea 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -153,34 +153,35 @@ nav:
   - Home:
       - Home: "index.md"
       - Tutorial: "pubmed.md"
-      - Data Augmentation: "processing.md"
-      - Training: "training.md"
-      - Inference: "inference.md"
-      - Evaluation: "evaluation.md"
+      - Guide:
+          - Data Augmentation: "processing.md"
+          - Training: "training.md"
+          - Inference: "inference.md"
+          - Evaluation: "evaluation.md"
   - API:
       - Processing:
           - Step: "reference/processing/step.md"
           - Pipeline: "reference/processing/pipeline.md"
-          - Utils: "reference/processing/utils.md"
           - Dataset Loaders:
               - loaders: "reference/processing/dataset_loaders/loaders.md"
-          - Answer Processors:
-              - regex: "reference/processing/answer_processors/regex.md"
           - Local Steps:
               - Common Datasets: "reference/processing/local_steps/common_datasets.md"
               - Formatting: "reference/processing/local_steps/formatting.md"
               - Retrievers:
                   - Haystack:
                       "reference/processing/local_steps/retrievers/haystack.md"
-              - Context: "reference/processing/local_steps/context.md"
-              - Prompt Creation: "reference/processing/local_steps/prompter.md"
-              - RAFT: "reference/processing/local_steps/raft.md"
               - API:
                   - OpenAI Chat:
                       "reference/processing/local_steps/api/openai.md"
+              - Context: "reference/processing/local_steps/context.md"
+              - Prompt Creation: "reference/processing/local_steps/prompter.md"
+              - RAFT: "reference/processing/local_steps/raft.md"
           - Global Steps:
               - Sampling and Fewshot: "reference/processing/global_steps/sampling.md"
               - Output: "reference/processing/global_steps/output.md"
+          - Answer Processors:
+              - regex: "reference/processing/answer_processors/regex.md"
+          - Utils: "reference/processing/utils.md"
       - Models:
           - Transformers: "reference/models/hf.md"
           - OpenAI: "reference/models/openai_executor.md"
diff --git a/ragfoundry/processing/local_steps/api/openai.py b/ragfoundry/processing/local_steps/api/openai.py
index 8e6060d..76aaf89 100644
--- a/ragfoundry/processing/local_steps/api/openai.py
+++ b/ragfoundry/processing/local_steps/api/openai.py
@@ -14,6 +14,13 @@ class OpenAIChat(LocalStep):
     """
 
     def __init__(self, model, instruction, prompt_key, answer_key, **kwargs):
+        """
+        Args:
+            model (dict): Configuration for the OpenAIExecutor.
+            instruction (str): Path to the system instruction file.
+            prompt_key (str): Key to the prompt in the item.
+            answer_key (str): Key to store the response.
+        """
         super().__init__(**kwargs)
 
         self.model = OpenAIExecutor(**model)
diff --git a/ragfoundry/processing/local_steps/prompter.py b/ragfoundry/processing/local_steps/prompter.py
index 0ea9d22..b9a2849 100644
--- a/ragfoundry/processing/local_steps/prompter.py
+++ b/ragfoundry/processing/local_steps/prompter.py
@@ -4,13 +4,15 @@
 class TextPrompter(LocalStep):
     """
     Class for creating prompts. The input is a prompt file with placeholders, a mapping of the placeholders to the item keys, and the key to store the result.
-
-    Example: the prompt file is "prompt.txt" with the content "{query}?\n{answer}".
-    The mapping is {"query": "question", "answer": "solution"}.
-    The result key is "prompt".
     """
 
     def __init__(self, prompt_file: str, mapping: dict, output_key, **kwargs):
+        """
+        Args:
+            prompt_file (str): Path to the prompt file.
+            mapping (dict): Mapping of the placeholders in the prompt to the item keys.
+            output_key (str): Key to store the formatted prompt.
+        """
         super().__init__(**kwargs)
         self.prompt = open(prompt_file).read()
         self.mapping = mapping
diff --git a/ragfoundry/processing/step.py b/ragfoundry/processing/step.py
index 65c6fa0..7ddbaf0 100644
--- a/ragfoundry/processing/step.py
+++ b/ragfoundry/processing/step.py
@@ -55,6 +55,9 @@ def __call__(self, datasets, **kwargs):
         self.process_inputs(datasets, **kwargs)
 
     def process_inputs(self, datasets, **kwargs):
+        """
+        Run the step `process` function for each dataset in `inputs`.
+        """
         for dataset_name in self.inputs:
             self.process(dataset_name, datasets, **kwargs)