Update license field following SPDX 2.1 license expression standard

packages/html/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.3.1"
 authors = ["Jonathan Kelley"]
 edition = "2018"
 description = "HTML Element pack for Dioxus - a concurrent renderer-agnostic Virtual DOM for interactive user experiences"
-license = "MIT/Apache-2.0"
+license = "MIT OR Apache-2.0"
 repository = "https://github.com/DioxusLabs/dioxus/"
 homepage = "https://dioxuslabs.com"
 keywords = ["dom", "ui", "gui", "react"]