docs: Added 2 more --out-dir examples

docs/src/commands/build.md

@@ -26,12 +26,12 @@ By default, `wasm-pack` generates a directory for its build output called `pkg`
 in the same directory as the `Cargo.toml` file.
 Use the `--out-dir` flag to place the build output in a different location.
 
-```
-wasm-pack build examples/js-hello-world --out-dir ../builds/js-hello-world
-```
+Examples with and without the `--out-dir` flag:
 
-The above command will create directory `examples/builds/js-hello-world`
-and place the build artifacts there, instead of the default `examples/js-hello-world/pkg`.
+- `wasm-pack build` - creates `pkg` directory next to `Cargo.toml` file
+- `wasm-pack build --out-dir out` - creates `out` directory next to `Cargo.toml` file
+- `wasm-pack build examples/js-hello-world --out-dir ../builds/js-hello-world` -
+creates `examples/builds/js-hello-world`
 
 The `--out-dir` path can be absolute or relative to the directory that contains the `Cargo.toml` file.