grammar and formatting

Author: MikeBirdTech

docs/NCU_MIGRATION_GUIDE.md

@@ -38,7 +38,7 @@ All stateless LLM attributes have been moved to `interpreter.llm`:
 - `interpreter.api_version` → `interpreter.llm.api_version`
 - `interpreter.api_base` → `interpreter.llm.api_base`
 
-This is reflected **1)** in Python applications using Open Interpreter and **2)** in your profiles file for OI's terminal interface, which can be edited via `interpreter --profiles`.
+This is reflected **1)** in Python applications using Open Interpreter and **2)** in your profile for OI's terminal interface, which can be edited via `interpreter --profiles`.
 
 ## New Static Messages Structure
 

docs/guides/basic-usage.mdx

@@ -101,7 +101,7 @@ interpreter.messages = messages
 
 ### Configure Default Settings
 
-We save default settings to a profile file which can be edited by running the following command:
+We save default settings to the `default.yaml` profile which can be opened and edited by running the following command:
 
 ```shell
 interpreter --profiles

docs/usage/examples.mdx

@@ -102,7 +102,7 @@ interpreter.messages = messages
 
 ### Configure Default Settings
 
-We save default settings to a profile file which can be edited by running the following command:
+We save default settings to a profile which can be edited by running the following command:
 
 ```shell
 interpreter --profiles