feat(cmd): add the encoder mode to the toml-test adapter

Assisted-by: DeepSeek V4.1 Flash

README.md

@@ -4,7 +4,7 @@ A TOML 1.1 parser and encoder for Go, written with the standard library
 alone. `interpres` (Latin for *interpreter*) gives zero-dependency
 programs an `encoding/json`-style API for reading and writing TOML, and passes
 the entire official [toml-test](https://github.com/toml-lang/toml-test) suite:
-214 valid and 467 invalid cases, zero failures.
+214 valid, 467 invalid and 214 encoder cases, zero failures.
 
 ## Features
 
@@ -163,7 +163,7 @@ See [docs/DEVELOPMENT.md](docs/DEVELOPMENT.md) for the full workflow, and
 
 - [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md): components and data flow
 - [docs/API.md](docs/API.md): the API reference, decoding and encoding rules
-- [docs/CLI.md](docs/CLI.md): the interpres-decode toml-test adapter and validator
+- [docs/CLI.md](docs/CLI.md): the interpres-decode adapter and validator
 
 ## Licence