chore: create an api.http file to test upload API [Close #06]

[glaucia86]

Purpose

This PR is related with: #6 and close it too

• Create an api.http file to test this API using REST Client extension
• made some adjustments to the .md files related to guidance on how to execute this request in the api.http file

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[] Feature
[ ] Code style update (formatting, local variables)
[x] Refactoring (no functional changes, no api changes)
[x] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

Or you can see in action in the gif below

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information

This pull request includes changes to the packages/api/api.http file. The changes include modifying an API endpoint description and introducing a new way to upload PDF documents.

API endpoint modification:

• packages/api/api.http: The description of the POST request to /api/chat has been changed from "Chat with a bot (this is a sample)" to "Create a new question".

Introduction of new upload method:

• packages/api/api.http: The POST request to /api/upload has been updated to accept multipart/form-data. This allows for the uploading of PDF documents, with an example provided for a file named "test.pdf". Additionally, the request now accepts a JSON object named "options" with parameters for "category", "wait", and "useVectors".