Add option documentation

Author: febo

packages/renderers-rust/README.md

@@ -47,6 +47,7 @@ The `renderVisitor` accepts the following options.
 | `dependencyMap`               | `Record<string, string>`                                                                                                | `{}`                    | A mapping between import aliases and their actual crate name or path in Rust.                                                                                                                    |
 | `renderParentInstructions`    | `boolean`                                                                                                               | `false`                 | When using nested instructions, whether the parent instructions should also be rendered. When set to `false` (default), only the instruction leaves are being rendered.                          |
 | `traitOptions`                | [`TraitOptions`](#trait-options)                                                                                        | `DEFAULT_TRAIT_OPTIONS` | A set of options that can be used to configure how traits are rendered for every Rust types. See [documentation below](#trait-options) for more information.                                     |
+| `anchorTraits` | `boolean`                                                                                                               | `true`                  | Whether to generate Anchor traits `impl` for account types.                                                                                                                        |
 
 ## Trait Options