Add docs for TriggerReactor keywords

[Sayakie]

📑 Overview

This issue contains suggestions for adding Discord slash commands dealing with documentation for keywords like IF, ENDIF, WHILE, FOR, IMPORT, or whatever reserved words TriggerReactor includes.

🪜 Specification

Adding Autocomplete interaction via Discord slash commands (AKA text inputs):

/tag <keywordClause> [targetClause]

• keywordClauses: a reserved words TriggerReactor includes. E.g: IF, WHILE, FOR, IMPORT, etc.
• targetCaluse: a Discod user regex to mention. This should be optional.

🧪 Illustrative Examples

Here you can see how this proposal desired to act:

Input: /tag IF
Expected behavior:

IF문은 어떠한 두 개의 값을 비교해 그 결괏값에 따라 코드 흐름(*Code flow*)을
제어하는 강력한 구문(*Statement*)입니다. `IF`문은 반드시 끝나는 지점에
`ENDIF`문을 선언해 끝나는 지점을 표시해야 합니다.

관련된 구문으로 `ELSE`문과 `ELSEIF`문이 있으며 반드시 사용할 필요가 없습니다.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Sayakie]

Heya, stale bot! Do no close this issue yet, since should be done.