ventures: MDecks is styled .mdeck

ventures/ventures.json

@@ -2,14 +2,14 @@
  "ventures": [
   {
    "slug": "mdecks",
-   "name": "MDecks",
+   "name": ".mdeck",
    "one_liner": "Write slides in plain text and instantly preview a clean presentation layout.",
    "for_whom": "People who make a quick throwaway deck every week and would rather type than drag boxes.",
    "url": "https://teahubxyz.github.io/time/ventures/mdecks/",
-   "join": "https://github.com/teahubxyz/time/issues/new?template=early-access.yml&title=Early+access%3A+MDecks&venture=mdecks&plan=Pro",
+   "join": "https://github.com/teahubxyz/time/issues/new?template=early-access.yml&title=Early+access%3A+.mdeck&venture=mdecks&plan=Pro",
    "signal": 13,
    "card": 11,
-   "design": "editorial print: a broadsheet/magazine layout, serif display type, columns, rules, generous margins",
+   "design": "product-first: the first design, dark, editor and live preview as the first screen; the sample deck is the pitch",
    "version": 1,
    "planned": "2026-10-11",
    "status": "live",