fixed syntax

pyproject.toml

@@ -4,9 +4,9 @@ version = "0.1.0"
 description = "High-Level Abstraction Web-GUI Using Just Python"
 authors = ["Zauberzeug GmbH"]
 license = "MIT"
-readme = README.md
-repository = https://github.com/zauberzeug/nicegui
-keywords = "gui, ui, web, interface, live"
+readme = "README.md"
+repository = "https://github.com/zauberzeug/nicegui"
+keywords = ["gui", "ui", "web", "interface", "live"]
 
 [tool.poetry.dependencies]
 python = "^3.7"