diff --git a/docs/source/explanation/index.md b/docs/source/explanation/index.md
index abd896c1..07dbcc86 100644
--- a/docs/source/explanation/index.md
+++ b/docs/source/explanation/index.md
@@ -1,6 +1,6 @@
 # Explanation
 
-The explanation guides are written to provide big-picture explanations of how JupyterHub works. They are meant to build your understanding of particular topics. 
+The explanation guides are written to provide big-picture explanations of how JupyterHub works. They are meant to build your understanding of particular topics.
 
 ```{toctree}
 :maxdepth: 2
diff --git a/docs/source/faq/index.md b/docs/source/faq/index.md
index dbf1d883..82929a92 100644
--- a/docs/source/faq/index.md
+++ b/docs/source/faq/index.md
@@ -1,9 +1,8 @@
 # FAQs
 
-Find answers to some of the most frequently-asked questions around JupyterHub and how it works. 
-
+Find answers to some of the most frequently-asked questions around JupyterHub and how it works.
 
 ```{toctree}
 :maxdepth: 2
 
-```
\ No newline at end of file
+```
diff --git a/docs/source/howto/index.md b/docs/source/howto/index.md
index 9733d1c7..1a4d68a9 100644
--- a/docs/source/howto/index.md
+++ b/docs/source/howto/index.md
@@ -1,8 +1,8 @@
 # How-to
 
-The *How-to* guides provide practical step-by-step details to help you achieve a particular goal. They are useful when you are trying to get something done but require you to understand and adapt the steps to your specific usecase.  
+The _How-to_ guides provide practical step-by-step details to help you achieve a particular goal. They are useful when you are trying to get something done but require you to understand and adapt the steps to your specific usecase.
 
 ```{toctree}
 :maxdepth: 2
 
-```
\ No newline at end of file
+```
diff --git a/docs/source/tutorial/index.md b/docs/source/tutorial/index.md
index b6913ecd..14d6f1b3 100644
--- a/docs/source/tutorial/index.md
+++ b/docs/source/tutorial/index.md
@@ -1,8 +1,8 @@
 # Tutorials
 
-This section of the documentation provides step-by-step tutorials to help you achieve a specific goal. The tutorials should be a good place to start learning about JupyterHub and how it works. 
+This section of the documentation provides step-by-step tutorials to help you achieve a specific goal. The tutorials should be a good place to start learning about JupyterHub and how it works.
 
 ```{toctree}
 :maxdepth: 2
 
-```
\ No newline at end of file
+```