update docs mentioning vale

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

CONTRIBUTING.md

@@ -78,7 +78,7 @@ If you're contributing to the backend or CLI tooling, be mindful of cross-platfo
 
 Also be sure to skim through our [ADRs](docs/architecture-decisions) to see if they cover what you're working on. In particular [ADR006: Avoid React.FC and React.SFC](docs/architecture-decisions/adr006-avoid-react-fc.md) is one to look out for.
 
-If there are any updates in `markdown` file please make sure to run `yarn run lint:docs`. Though it is checked on `lint-staged`. It is required to install [vale](https://docs.errata.ai/vale/install) `1.4.0` separately and make sure it is accessed by global command.
+If there are any updates in `markdown` file please make sure to run `yarn run lint:docs`. Though it is checked on `lint-staged`. It is required to install [vale](https://docs.errata.ai/vale/install) separately and make sure it is accessed by global command.
 
 ## Developer Certificate of Origin
 

docs/getting-started/project-structure.md

@@ -212,9 +212,6 @@ future.
   common for companies to have their own npm registry, and this file makes sure
   that this folder always uses the public registry.
 
-- [`.vale.ini`](https://github.com/backstage/backstage/tree/master/.vale.ini) -
-  [Spell checker](https://github.com/errata-ai/vale) for Markdown files.
-
 - [`.yarnrc`](https://github.com/backstage/backstage/tree/master/.yarnrc) -
   Enforces "our" version of Yarn.