Add Markdown linter and Vale

.github/styles/DuckLake/spelling-ducklake.yml

@@ -0,0 +1,7 @@
+extends: substitution
+message: Use '%s' instead of '%s'
+level: error
+ignorecase: false
+swap:
+  'Ducklake': 'DuckLake'
+  'duckLake': 'DuckLake'

.vale.ini

@@ -1,2 +1,6 @@
+StylesPath = .github/styles
 MinAlertLevel = suggestion
-IgnoredScopes = front matter
+IgnoredScopes = front matter
+
+[*.md]
+BasedOnStyles = DuckLake

docs/preview/duckdb/advanced_features/data_inlining.md

@@ -29,7 +29,7 @@ INSERT INTO inlining.tbl VALUES (1), (2), (3);
 -- no Parquet files exist
 SELECT COUNT(*) FROM glob('inlining.db.files/**');
 ```
-```
+```text
 ┌──────────────┐
 │ count_star() │
 │    int64     │
@@ -44,7 +44,7 @@ When inserting more data than the `DATA_INLINING_ROW_LIMIT`, inserts are automat
 INSERT INTO inlining.tbl FROM range(100);
 SELECT COUNT(*) FROM glob('inlining.db.files/**');
 ```
-```
+```text
 ┌──────────────┐
 │ count_star() │
 │    int64     │

docs/stable/duckdb/advanced_features/data_inlining.md

@@ -29,7 +29,7 @@ INSERT INTO inlining.tbl VALUES (1), (2), (3);
 -- no Parquet files exist
 SELECT COUNT(*) FROM glob('inlining.db.files/**');
 ```
-```
+```text
 ┌──────────────┐
 │ count_star() │
 │    int64     │
@@ -44,7 +44,7 @@ When inserting more data than the `DATA_INLINING_ROW_LIMIT`, inserts are automat
 INSERT INTO inlining.tbl FROM range(100);
 SELECT COUNT(*) FROM glob('inlining.db.files/**');
 ```
-```
+```text
 ┌──────────────┐
 │ count_star() │
 │    int64     │

scripts/lint.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+set -xeuo pipefail
+
+fix=''
+check='--check --diff'
+while getopts "f" opt; do
+    case $opt in
+        f) fix="--fix"
+           check='';;
+        *) exit
+    esac
+done
+
+npx markdownlint-cli docs/stable/ _posts/ --config .markdownlint.jsonc $fix || echo 'markdownlint failed'
+
+black scripts --skip-string-normalization $check || echo 'black failed'
+
+if ! $(which vale); then
+    echo "Vale binary not found, please install it from https://vale.sh/docs/vale-cli/installation/"
+    exit 1
+fi
+
+vale sync
+vale docs/stable/ docs/preview/ _posts/
+