diff --git a/docs/conf.py b/docs/conf.py
index 16c782a..ddfd75a 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -69,7 +69,6 @@
 
 # The suffix of source filenames.
 source_suffix = [
-    ".rst",
     ".md",
 ]
 
diff --git a/docs/features/index.md b/docs/features/index.md
new file mode 100644
index 0000000..21e118c
--- /dev/null
+++ b/docs/features/index.md
@@ -0,0 +1,5 @@
+# ✨ Features
+
+## Some feature
+
+To be documented ...
diff --git a/docs/features/index.rst b/docs/features/index.rst
deleted file mode 100644
index 9187004..0000000
--- a/docs/features/index.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-✨ Features
-************
-
-Some feature
-------------
-
-To be documented ...
diff --git a/docs/getting_started/concepts.md b/docs/getting_started/concepts.md
new file mode 100644
index 0000000..5c72c5a
--- /dev/null
+++ b/docs/getting_started/concepts.md
@@ -0,0 +1,3 @@
+# Basic Concepts and Naming Conventions
+
+To be documented ...
diff --git a/docs/getting_started/concepts.rst b/docs/getting_started/concepts.rst
deleted file mode 100644
index 8cb3afb..0000000
--- a/docs/getting_started/concepts.rst
+++ /dev/null
@@ -1,4 +0,0 @@
-Basic Concepts and Naming Conventions
-=====================================
-
-To be documented ...
diff --git a/docs/getting_started/index.md b/docs/getting_started/index.md
new file mode 100644
index 0000000..4663032
--- /dev/null
+++ b/docs/getting_started/index.md
@@ -0,0 +1,7 @@
+# 🚀 Getting Started
+
+```{toctree}
+:maxdepth: 2
+
+concepts
+```
diff --git a/docs/getting_started/index.rst b/docs/getting_started/index.rst
deleted file mode 100644
index 65d7a5e..0000000
--- a/docs/getting_started/index.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-🚀 Getting Started
-******************
-
-.. toctree::
-   :maxdepth: 2
-
-   concepts
diff --git a/docs/index.md b/docs/index.md
new file mode 100644
index 0000000..fe1cf8d
--- /dev/null
+++ b/docs/index.md
@@ -0,0 +1,10 @@
+# Welcome to Intel HEX Tools documentation
+
+```{toctree}
+:maxdepth: 2
+
+getting_started/index
+features/index
+internals/index
+about/index
+```
diff --git a/docs/index.rst b/docs/index.rst
deleted file mode 100644
index 087a474..0000000
--- a/docs/index.rst
+++ /dev/null
@@ -1,10 +0,0 @@
-Welcome to Intel HEX Tools documentation
-########################################
-
-.. toctree::
-    :maxdepth: 2
-
-    getting_started/index
-    features/index
-    internals/index
-    about/index
diff --git a/docs/internals/index.md b/docs/internals/index.md
new file mode 100644
index 0000000..330367f
--- /dev/null
+++ b/docs/internals/index.md
@@ -0,0 +1,3 @@
+# 📚 Internals
+
+To be documented.
diff --git a/docs/internals/index.rst b/docs/internals/index.rst
deleted file mode 100644
index ca44359..0000000
--- a/docs/internals/index.rst
+++ /dev/null
@@ -1,4 +0,0 @@
-📚 Internals
-************
-
-To be documented.