Added Vault CMS stub page. (#13235)

Co-authored-by: Sarah Rainsberger <5098874+sarah11918@users.noreply.github.com>

Author: davidvkimball

public/logos/vault-cms.svg

@@ -0,0 +1,18 @@
+---
+title: Vault CMS & Astro
+description: Add content to your Astro project using Vault CMS
+sidebar:
+  label: Vault CMS
+type: cms
+logo: vault-cms
+i18nReady: true
+stub: true
+---
+
+[Vault CMS](https://vaultcms.org) is a headless CMS for Astro powered by Obsidian and Git. Write in Markdown with live preview inside a preconfigured Obsidian vault, then deploy to your Astro site.
+
+## Official Resources
+
+- [Vault CMS Documentation](https://docs.vaultcms.org/)
+- [Vault CMS Source Code](https://github.com/davidvkimball/vault-cms)
+

src/content/docs/en/guides/cms/vault-cms.mdx

@@ -106,6 +106,7 @@ export const logos = LogoCheck({
 	'tina-cms': { file: 'tina-cms.svg', padding: '.15em' },
 	turso: { file: 'turso.svg', padding: '.2em' },
 	umbraco: { file: 'umbraco.svg', padding: '.05em' },
+	'vault-cms': {file: 'vault-cms.svg', padding: '0.15em' },
 	vercel: { file: 'vercel.svg', padding: '.3em .3em .35em' },
 	vue: { file: 'vue.svg', padding: '.3em .2em .2em' },
 	vuepress: { file: 'vuepress.png', padding: '.2em .175em .175em' },