[vale] Fixed link to docs and added vale sync to pre-commit.

We use a vale plugin for Hugo exceptions and `vale sync` downloads it.

.gitignore

@@ -34,3 +34,5 @@ CMakeUserPresets.json
 # VS Code devcontainer
 /.cpm
 nohup.out
+
+/Documentation/.vale

.pre-commit-config.yaml

@@ -65,6 +65,6 @@ repos:
         files: \.(h|cpp)$
       - id: vale
         name: Check spelling with vale
-        entry: bash -c 'if command -v vale &> /dev/null; then VALE_MIN_ALERT_LEVEL=error scripts/ci/helper/run-vale; else exit 0; fi'
+        entry: bash -c 'if command -v vale &> /dev/null; then vale sync; VALE_MIN_ALERT_LEVEL=error scripts/ci/helper/run-vale; else exit 0; fi'
         pass_filenames: false
         language: system

.vale.ini

 # Vale configuration file.
 #
-# For more information, see https://errata-ai.gitbook.io/vale/getting-started/configuration.
+# For more information, see https://vale.sh/docs/topics/config
 StylesPath = Documentation/.vale
 Vocab = ogs
 MinAlertLevel = suggestion