Added Nebula Graph Logo to subcategory: database

[wey-gu]

Nebula Graph is an Open Source, Distributed, Cloud-Native Graph Database licensed in Apache 2.0.

Pre-submission checklist:

Please check each of these after submitting your pull request:

• Are you only including a repo_url if your project is 100% open source? If so, you need to pick the single best GitHub repository for your project, not a GitHub organization.
• Is your project closed source or, if it is open source, does your project have at least 300 GitHub stars?
• Have you picked the single best (existing) category for your project?
• Does it follow the other guidelines from the new entries section?
• Have you added your SVG to hosted_logos and referenced it there?
• Does your logo clearly state the name of the project/product and follow the other logo guidelines?
• Does your project/product name match the text on the logo?
• Have you verified that the Crunchbase data for your organization is correct (including headquarters and LinkedIn)?
• ~15 minutes after opening the pull request, the CNCF-Bot will post the URL for your staging server. Have you confirmed that it looks good to you and then added a comment to the PR saying "LGTM"?

[netlify]

✔️ Deploy Preview for landscape ready!

🔨 Explore the source changes: 820e90b

🔍 Inspect the deploy log: https://app.netlify.com/sites/landscape/deploys/622eaef9bace8f0008b1ad37

😎 Browse the preview: https://deploy-preview-2516--landscape.netlify.app

[netlify]

✔️ Deploy Preview for landscape ready!

🔨 Explore the source changes: 3d921cf

🔍 Inspect the deploy log: https://app.netlify.com/sites/landscape/deploys/622ec6794d3ea40008e001bb

😎 Browse the preview: https://deploy-preview-2516--landscape.netlify.app

[wey-gu]

Sorry, I pushed a vertical version of the logo to replace the initial one, how could the netlify bot be triggered again?

Update: it turned out to be triggered only via yaml file change itself.

[wey-gu]

LGTM