Add ja translations

[Norio4]

Author checklist (to be completed by original Author)

• Is this document a good fit for the Rocky project ?
• Is this a non-English contribution?
• Title and Author MetaTags have been inserted into the document
• If applicable, steps and instructions have been tested to work on a real system
• Did you perform an initial self-review to fix basic typos and grammatical correctness

Rocky Documentation checklist (to be completed by Rocky team)

• 1st Pass (Check that document is good fit for project and author checklist completed)
• 2nd Pass (Technical Review - check for technical correctness)
• 3rd Pass (Basic Editorial Review)
• 4th Pass (Detailed Editorial Review and Peer Review)
• 5th Pass (Include document in TOC)
• Final pass/approval (Final Review)

Hi!
I've added 2 translations.

Thank you!

[sspencerwire]

Hello again Norio. Thanks for your contributions here! Can you do me a favor in future documents? When editing, go ahead and update the meta as well. In this case it would be like the following:

title: (the title in Japanese)
author: (whoever the author is, if there is no author listed in the meta, just skip the author meta and just do contributors below)
contributors: Norio Yahata
update: 12-Dec-2021

I will update these two PR's to include that and then merge. Also, we are working on a new platform for translating "Crowdin"... Currently, it is being managed by one of our French contributors and is only set on a few select directories in the documentation. If you would like an invitation to this to start learning that, just let me know and I'll get you in there. At some point, we will have all of our translating contributors use this platform.

[sspencerwire]

Hello again Norio. Thanks for your contributions here! Can you do me a favor in future documents? When editing, go ahead and update the meta as well. In this case it would be like the following:
title: (the title in Japanese)

author: (whoever the author is, if there is no author listed in the meta, just skip the author meta and just do contributors below)
contributors: Norio Yahata
update: 12-Dec-2021
I will update these two PR's to include that and then merge. Also, we are working on a new platform for translating "Crowdin"... Currently, it is being managed by one of our French contributors and is only set on a few select directories in the documentation. If you would like an invitation to this to start learning that, just let me know and I'll get you in there. At some point, we will have all of our translating contributors use this platform.

Not sure how that bold facing got in there!!

[Norio4]

@sspencerwire

Thanks for your reviewing!

When editing, go ahead and update the meta as well. In this case it would be like the following:

Sure!

I have never used "Crowdin" but I would like to learn it.
Please invite me!

Thanks.