Claiming namespace markdown-inline-preview

### Namespace

markdown-inline-preview

### Ownership

- [x] The namespace is not currently owned on Open VSX (verify by a search on [open-vsx.org](https://open-vsx.org))

### Account Age

- [x] The GitHub ID making this request has at least 12 months of public history

***
### Option 1

### VS Code Publisher with Repo

- [x] The namespace is also a publisher account on the VS Code Marketplace (check by browsing https://marketplace.visualstudio.com/publishers/{publisher}) and has an extension published there with a repo specified in its package.json file.

__Chose one of the following:__
- [x] The extension repo, public or private, is owned by the GitHub ID making this request (same org)
- [ ] Otherwise, provide the URL of a commit in the extension's public repo by the GitHub ID making this request

***
### Option 2

### VS Code Publisher without Repo

- [ ] The namespace is also a publisher account on the VS Code Marketplace and does not have published extensions or has published extensions with no GitHub repos.

***
### Option 3

### Not a VS Code Marketplace Publisher

- [ ] The namespace is not a publisher account on the VS Code Marketplace

***
### Option 4

### All Other Cases

- [ ] You are unable to provide the inputs required in the three options above. This option will take the longest to process.

***

### Claim evidence

- VS Code Marketplace publisher: https://marketplace.visualstudio.com/publishers/markdown-inline-preview (publisher account name matches the namespace being claimed)
- Extension published under that publisher: https://marketplace.visualstudio.com/items?itemName=markdown-inline-preview.markdown-inline-preview
- The extension's package.json repository field points to https://github.com/kkaiki/markdown-inline-preview.git
- That GitHub repository is owned by kkaiki (this same GitHub account), confirmed via `gh repo view kkaiki/markdown-inline-preview`
- The same extension is also published to Open VSX under this namespace by this GitHub account (open-vsx.org login: kkaiki), see https://open-vsx.org/extension/markdown-inline-preview/markdown-inline-preview

Start by verifying the claimed namespace, publisher, extension, repository ownership, and Open VSX publication using the URLs and commands listed in the issue. Done means the evidence is confirmed and the markdown-inline-preview namespace claim is processed.

Written by the indexing model from the issue text.