bump to 0.4.0

Cargo.lock

@@ -375,7 +375,7 @@ dependencies = [
 
 [[package]]
 name = "bunbun"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "actix-web 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bunbun"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Edward Shen <code@eddie.sh>"]
 edition = "2018"
 description = "Re-implementation of bunny1 in Rust"

README.md

@@ -39,6 +39,15 @@ swapping rather than directly updating the file.
 bunbun supports the [OpenSearch Description Format][osdf]. Visit the root page
 of your desired instance of bunbun to learn more.
 
+## Reasons to use bunbun
+
+- Portable: bunbun runs off a single binary and config file.
+- Small: binary is 1.3MB (after running `strip` and `upx --lzma` on the release
+  binary).
+- Convenient: bunbun watches for config changes and refreshes its routes
+  automatically, allowing for rapid development.
+- Memory-safe: Built with [Rust][rust-lang].
+
 [rust-lang]: https://www.rust-lang.org/
 [bunny1]: http://www.bunny1.org/
 [osdf]: https://developer.mozilla.org/en-US/docs/Web/OpenSearch