chore(docs): solve some issues (#3868)

docs/tutorials/aws/authentication.md

@@ -27,7 +27,7 @@ Those credentials must be associated to a user or role with proper permissions t
 
 Prowler can use your custom AWS Profile with:
 ```console
-prowler <provider> -p/--profile <profile_name>
+prowler aws -p/--profile <profile_name>
 ```
 
 ## Multi-Factor Authentication

docs/tutorials/aws/s3.md

@@ -3,13 +3,13 @@
 To save your report in an S3 bucket, use `-B`/`--output-bucket`.
 
 ```sh
-prowler <provider> -B my-bucket
+prowler aws -B my-bucket
 ```
 
 If you can use a custom folder and/or filename, use `-o`/`--output-directory` and/or `-F`/`--output-filename`.
 
 ```sh
-prowler <provider> \
+prowler aws \
         -B my-bucket \
         --output-directory test-folder \
         --output-filename output-filename
@@ -18,8 +18,11 @@ prowler <provider> \
 By default Prowler sends HTML, JSON and CSV output formats, if you want to send a custom output format or a single one of the defaults you can specify it with the `-M`/`--output-modes` flag.
 
 ```sh
-prowler <provider> -M csv -B my-bucket
+prowler aws -M csv -B my-bucket
 ```
 
+
 ???+ note
-        In the case you do not want to use the assumed role credentials but the initial credentials to put the reports into the S3 bucket, use `-D`/`--output-bucket-no-assume` instead of `-B`/`--output-bucket`. Make sure that the used credentials have `s3:PutObject` permissions in the S3 path where the reports are going to be uploaded.
+    In the case you do not want to use the assumed role credentials but the initial credentials to put the reports into the S3 bucket, use `-D`/`--output-bucket-no-assume` instead of `-B`/`--output-bucket`.
+???+ warning
+    Make sure that the used credentials have `s3:PutObject` permissions in the S3 path where the reports are going to be uploaded.