Fix crates.io repository URLs and READMEs for subsecond and manganis crates (#5013)

* Update repository URL and add README reference

* Fix repository URL and add readme field

Updated repository URL to point to the correct path and added a readme field.

* Update repository URL in Cargo.toml

* Update repository URL in Cargo.toml

* Update repository URL and add readme path

* Fix repository URL in Cargo.toml

---------

Co-authored-by: Evan Almloff <evanalmloff@gmail.com>

packages/subsecond/subsecond-types/Cargo.toml

@@ -5,9 +5,9 @@ edition = "2021"
 authors = ["Jonathan Kelley"]
 description = "Types crate for the Subsecond hotpatch engine."
 license = "MIT OR Apache-2.0"
-repository = "https://github.com/DioxusLabs/dioxus/"
+repository = "https://github.com/DioxusLabs/dioxus/tree/main/packages/subsecond"
 keywords = ["hotpatch", "engine", "subsecond", "dioxus"]
-
+readme = "../README.md"
 
 [dependencies]
 serde = { workspace = true, features = ["derive"] }