Update 1.installation.md

content/1.getting-started/1.installation.md

@@ -266,4 +266,9 @@ Necto reimagines and optimizes core language functionalities, seamlessly integra
     #description
     Sorbet is a fast and incremental static type checker for Ruby, built by Stripe, for improved code quality and reliability.
     :::
+
+    :::card{label="Markdown Lint" icon="vscode-icons:file-type-markdownlint" to="/docs/tools/mdlint"}
+    #description
+    MarkdownLint is a popular, widely-used, and highly customizable tool for ensuring consistent and error-free Markdown formatting in documentation and writing.
+    :::
 ::