it: Link and description mismatch

[krvaibhaw]

Updated the _index.html file content/it/_index.html to include the
latest links for the Cloud Native Computing Foundation’s flagship conference.
KubeCon + CloudNativeCon

These KubeCon conferences are already over but we still have :

• Partecipa alla KubeCon ad Amsterdam (13-16 Agosto 2020)
• Partecipa alla KubeCon a Boston (17-20 Novembre 2020)

These have been updated to :

• Partecipa alla KubeCon a Valencia, Spagna + Virtual (16-20 maggio 2022)
• Partecipa al KubeCon a Detroit, Michigan (24-28 ottobre 2022)

Issue : #31384

[netlify]

✔️ Deploy Preview for kubernetes-io-main-staging ready!

🔨 Explore the source changes: 446a98a

🔍 Inspect the deploy log: https://app.netlify.com/sites/kubernetes-io-main-staging/deploys/61e693eeb149ea0007650f59

😎 Browse the preview: https://deploy-preview-31385--kubernetes-io-main-staging.netlify.app

[netlify]

✔️ Deploy Preview for kubernetes-io-main-staging ready!

🔨 Explore the source changes: 86b8b2e

🔍 Inspect the deploy log: https://app.netlify.com/sites/kubernetes-io-main-staging/deploys/61e6944a0edb76000894e550

😎 Browse the preview: https://deploy-preview-31385--kubernetes-io-main-staging.netlify.app

[fabriziopandini]

@krvaibhaw thanks for this PR!
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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

The pull request process is described here

Needs approval from an approver in each of these files:

• content/it/OWNERS [fabriziopandini]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 748cd4a437d69660f25bbf41c4390aab798f216f