add punctuation (Textualize#62)

Author: clintonlunn

data/projects.json

@@ -4,7 +4,7 @@
             "id": "textual",
             "headline": "Textual",
             "stars": "14k",
-            "desc": "Build amazing TUIs (Text User Interfaces) with this innovative Python framework",
+            "desc": "Build amazing TUIs (Text User Interfaces) with this innovative Python framework.",
             "code": "https://github.com/Textualize/textual",
             "docs": "https://textual.textualize.io/",
             "videoUrl": "https://d32lig6y1jobn4.cloudfront.net/textual.mp4"