add bubble、selection sort with ruby code

[junminhong]

If this pull request (PR) pertains to Chinese-to-English translation, please confirm that you have read the contribution guidelines and complete the checklist below:

• This PR represents the translation of a single, complete document, or contains only bug fixes.
• The translation accurately conveys the original meaning and intent of the Chinese version. If deviations exist, I have provided explanatory comments to clarify the reasons.

If this pull request (PR) is associated with coding or code transpilation, please attach the relevant console outputs to the PR and complete the following checklist:

• I have thoroughly reviewed the code, focusing on its formatting, comments, indentation, and file headers.
• I have confirmed that the code execution outputs are consistent with those produced by the reference code (Python or Java).
• The code is designed to be compatible on standard operating systems, including Windows, macOS, and Ubuntu.

[krahets]

Hi @junminhong , thanks for the PR. Some issues to be addressed:

1. We use simplified Chinese.
2. The algorithm implementation not variable names is not consistent with the reference language(Python or Java).
3. Test cases are missing.
4. We should use different comment formats for the headings of functions, classes, etc.

Please carefully read the contribution guidelines #15 before submitting the PR. Here is an example #1098

[junminhong]

ok, thank you for reviewing my PR

I will solve the problem you mentioned