docs: drop the TOML 1.0 compatibility promise

Assisted-by: DeepSeek V4.1 Flash

README.md

@@ -1,14 +1,14 @@
 # interpres
 
-A TOML 1.0 and 1.1 parser and encoder for Go, written with the standard
-library alone. `interpres` (Latin for *interpreter*) gives zero-dependency
+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.
 
 ## Features
 
-- **Full TOML 1.0 and 1.1**: bare, quoted and dotted keys; tables and arrays of
+- **Full TOML 1.1**: bare, quoted and dotted keys; tables and arrays of
   tables; basic and literal strings including multiline, with the 1.1 `\e` and
   `\xHH` escapes; integers in the four radixes with `_` separators; floats with
   exponents, `inf` and `nan`; booleans; the four date-time kinds, seconds