Update Jeffwan’s company name and add more details for WG-training

[Jeffwan]

Forget to change my company name. I recently leave AWS and join Bytedance.

Add more important fixes and features in WG-training

[Jeffwan]

/cc @jbottum

[k8s-ci-robot]

@Jeffwan: GitHub didn't allow me to request PR reviews from the following users: karkumar.

Note that only kubeflow members and repo collaborators can review this PR, and authors cannot review their own PRs.

In response to [this](https://github.com/kubeflow/blog/pull/61#issuecomment-730581988): >/cc @jbottum @karkumar Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Jeffwan, terrytangyuan To complete the pull request process, please assign after the PR has been reviewed. You can assign the PR to them by writing /assign in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files: - **[OWNERS](https://github.com/kubeflow/blog/blob/master/OWNERS)** Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[jbottum]

/lgtm

[Jeffwan]

@jbottum Who can approve this PR?

[k8s-ci-robot]

New changes are detected. LGTM label has been removed.

[Jeffwan]

@jbottum

Seems OWNER file doesn't have enough folks to approve the change Can you manually merge it?

[jbottum]

@Jeffwan I merged this