Add README

Rm `/target` and add `.gitignore`

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>

.gitignore

@@ -0,0 +1,5 @@
+/target
+.DS_Store
+/packages
+/e2e-tests/cargo-binstall*
+

README.md

@@ -0,0 +1,5 @@
+# leon
+
+Dead-simple string templating.
+
+Check [here](https://docs.rs/leon) for latest documentation.

crates/leon-macros/Cargo.toml

@@ -8,6 +8,7 @@ documentation = "https://docs.rs/leon-macros"
 rust-version = "1.61.0"
 authors = ["Félix Saparelli <felix@passcod.name>", "Jiahao XU Jiahao_XU@outlook"]
 license = "Apache-2.0 OR MIT"
+readme = "../../README.md"
 
 [lib]
 proc-macro = true

crates/leon/Cargo.toml

@@ -9,6 +9,7 @@ authors = ["Félix Saparelli <felix@passcod.name>"]
 edition = "2021"
 license = "Apache-2.0 OR MIT"
 exclude = ["fuzz", "benches"]
+readme = "../../README.md"
 
 [dependencies]
 clap = { version = "4.4.8", features = ["derive"], optional = true }