diff --git a/.github/workflows/yaml-lint.yml b/.github/workflows/yaml-lint.yml
index e90967c..e0dc39b 100644
--- a/.github/workflows/yaml-lint.yml
+++ b/.github/workflows/yaml-lint.yml
@@ -1,5 +1,5 @@
 # yaml-language-server: $schema=https://www.schemastore.org/github-workflow.json
-name: YAML lint
+name: Format checks
 
 on:
   pull_request:
@@ -26,3 +26,17 @@ jobs:
         run: python -m pip install yamllint==1.38.0
       - name: Check YAML format and syntax
         run: yamllint --strict --format github .
+
+  markdown-lint:
+    name: Markdown format
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09  # v5
+        with:
+          persist-credentials: false
+      - name: Check Markdown format
+        uses: DavidAnson/markdownlint-cli2-action@21c1be1b93ad9ed58fa840aacc3f279cde2a72ff  # v24.2.0
+        with:
+          globs: '**/*.md'
diff --git a/.markdownlint.json b/.markdownlint.json
new file mode 100644
index 0000000..94842ce
--- /dev/null
+++ b/.markdownlint.json
@@ -0,0 +1,4 @@
+{
+  "$schema": "https://www.schemastore.org/markdownlint.json",
+  "MD013": false
+}
diff --git a/README.md b/README.md
index a46ae92..5a86cfe 100644
--- a/README.md
+++ b/README.md
@@ -1 +1 @@
-# .github
\ No newline at end of file
+# .github
diff --git a/profile/README.md b/profile/README.md
index 29af6ba..9a4dcf2 100644
--- a/profile/README.md
+++ b/profile/README.md
@@ -10,10 +10,11 @@ It has continued to grow and improve over the years and remains the **only open-
 ## Projects
 
 | Project | Description |
-|---------|-------------|
+| --------- | ------------- |
 | [connectbot](https://github.com/connectbot/connectbot) | The SSH Android app — a full-featured SSH client for Android |
 | [termlib](https://github.com/connectbot/termlib) | Terminal emulator library — an Android Compose component for embedding a terminal emulator in your app |
 | [cbssh](https://github.com/connectbot/cbssh) | ConnectBot SSH client library — a Kotlin SSH library for embedding SSH support in your Kotlin or Java app |
+| [cbtelnet](https://github.com/connectbot/cbtelnet) | ConnectBot Telnet client library — a Kotlin Telnet library for embedding Telnet support in your Kotlin or Java app |
 
 ## Supporting ConnectBot