diff --git a/mltb2/data.py b/mltb2/data.py
index de7a277..0be112e 100644
--- a/mltb2/data.py
+++ b/mltb2/data.py
@@ -6,8 +6,9 @@
 
 """Data loading module.
 
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[data]``
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[data]``
 """
 
 import os
diff --git a/mltb2/fasttext.py b/mltb2/fasttext.py
index 851ad8b..5fc3453 100644
--- a/mltb2/fasttext.py
+++ b/mltb2/fasttext.py
@@ -5,8 +5,10 @@
 """fastText specific module.
 
 This module is based on `fastText <https://fasttext.cc/docs/en/support.html>`_.
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[fasttext]``
+
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[fasttext]``
 """
 
 import os
diff --git a/mltb2/files.py b/mltb2/files.py
index 468fbac..2d9be8d 100644
--- a/mltb2/files.py
+++ b/mltb2/files.py
@@ -4,8 +4,9 @@
 
 """File utils module.
 
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[files]``
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[files]``
 """
 
 
diff --git a/mltb2/md.py b/mltb2/md.py
index 5d21e5b..62f2c6d 100644
--- a/mltb2/md.py
+++ b/mltb2/md.py
@@ -5,8 +5,9 @@
 
 """Markdown specific module.
 
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[md]``
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[md]``
 """
 
 import re
diff --git a/mltb2/openai.py b/mltb2/openai.py
index bdc3eb3..749f332 100644
--- a/mltb2/openai.py
+++ b/mltb2/openai.py
@@ -4,8 +4,9 @@
 
 """OpenAI specific module.
 
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[openai]``
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[openai]``
 """
 
 
diff --git a/mltb2/optuna.py b/mltb2/optuna.py
index 75689c3..125d7f8 100644
--- a/mltb2/optuna.py
+++ b/mltb2/optuna.py
@@ -5,8 +5,10 @@
 """Optuna specific module.
 
 This module is based on `Optuna <https://optuna.readthedocs.io/en/stable/>`_.
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[optuna]``
+
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[optuna]``
 """
 
 
diff --git a/mltb2/plot.py b/mltb2/plot.py
index 875ace8..2ef3d09 100644
--- a/mltb2/plot.py
+++ b/mltb2/plot.py
@@ -5,8 +5,10 @@
 """Plot tools module.
 
 This module is based on `Matplotlib <https://matplotlib.org/>`_.
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[plot]``
+
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[plot]``
 """
 
 from typing import Optional
diff --git a/mltb2/somajo.py b/mltb2/somajo.py
index 5b97c3a..7143af2 100644
--- a/mltb2/somajo.py
+++ b/mltb2/somajo.py
@@ -5,8 +5,10 @@
 """SoMaJo specific module.
 
 This module is based on `SoMaJo <https://github.com/tsproisl/SoMaJo>`_.
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[somajo]``
+
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[somajo]``
 """
 
 
diff --git a/mltb2/somajo_transformers.py b/mltb2/somajo_transformers.py
index 18b76ef..9b8b78d 100644
--- a/mltb2/somajo_transformers.py
+++ b/mltb2/somajo_transformers.py
@@ -8,8 +8,10 @@
 This module is based on
 `Hugging Face Transformers <https://huggingface.co/docs/transformers/index>`_ and
 `SoMaJo <https://github.com/tsproisl/SoMaJo>`_.
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[somajo_transformers]``
+
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[somajo_transformers]``
 """
 
 
diff --git a/mltb2/transformers.py b/mltb2/transformers.py
index fcea39f..356a3e1 100644
--- a/mltb2/transformers.py
+++ b/mltb2/transformers.py
@@ -6,8 +6,10 @@
 
 This module is based on
 `Hugging Face Transformers <https://huggingface.co/docs/transformers/index>`_.
-Use pip to install the necessary dependencies for this module:
-``pip install mltb2[transformers]``
+
+Hint:
+    Use pip to install the necessary dependencies for this module:
+    ``pip install mltb2[transformers]``
 """
 
 import os