Add the metadata crates.io needs

repository, readme, keywords and categories, so the crate page says what
this is and is findable; the MIT text the license field was already
claiming; and rust-version, because let-chains mean 1.88 and an older
toolchain should say so rather than fail to parse.

`cargo package` builds the packaged tarball cleanly: 17 files, nothing
stray, and the release binary links nothing beyond libc, so installing it
needs no system development packages.

Cargo.toml

@@ -4,6 +4,12 @@ version = "0.1.0"
 edition = "2024"
 description = "A live grid of window and display previews, for picking one"
 license = "MIT"
+repository = "https://github.com/mil-ad/wl-pick"
+readme = "README.md"
+keywords = ["wayland", "sway", "wlroots", "screencast", "switcher"]
+categories = ["command-line-utilities", "os::unix-apis"]
+# let-chains, which are edition 2024 and stable from here on
+rust-version = "1.88"
 
 [dependencies]
 wayland-client = "0.31"

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Milad Alizadeh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.