Created API Status (markdown)

API-Status.md

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+In an attempt to help everyone who works with the Telegram API, the library will by default report all *Remote Procedure Call* errors to [RPC PWRTelegram](https://rpc.pwrtelegram.xyz/), a public database anyone can query, made by [Daniil](https://github.com/danog). All the information sent is a ``GET`` request with the error code, error message and method used.
+
+If you still would like to opt out, simply set `client.session.report_errors = False` to disable this feature. However Daniil would really thank you if you helped him (and everyone) by keeping it on!
+
+## Querying the API status
+The API is accessed through `GET` requests, which can be made for instance through `curl`. A JSON response will be returned.
+
+**Error codes for a specific request**:
+```bash
+curl https://rpc.pwrtelegram.xyz/?for=messages.sendMessage
+```
+
+**Number of `RPC_CALL_FAIL`'s**:
+```bash
+curl https://rpc.pwrtelegram.xyz/?rip  # last hour
+curl https://rpc.pwrtelegram.xyz/?rip=$(time()-60)  # last minute
+```
+
+**Description of errors**:
+```bash
+curl https://rpc.pwrtelegram.xyz/?description_for=SESSION_REVOKED
+```
+
+**Code of a specific error**:
+```bash
+curl https://rpc.pwrtelegram.xyz/?code_for=STICKERSET_INVALID
+```