diff --git a/.mdlrc.style.rb b/.mdlrc.style.rb
index 85b3dbae73..d4afd46c7f 100644
--- a/.mdlrc.style.rb
+++ b/.mdlrc.style.rb
@@ -3,3 +3,7 @@
 rule 'header-style'
 rule 'ol-prefix', :style => :ordered
 rule 'no-reversed-links'
+rule 'no-missing-space-atx'
+rule 'no-multiple-space-atx'
+rule 'no-missing-space-closed-atx'
+rule 'no-multiple-space-closed-atx'
diff --git a/_includes/configure-registry-json.md b/_includes/configure-registry-json.md
index 0ef2727ccd..fb8ca75bc2 100644
--- a/_includes/configure-registry-json.md
+++ b/_includes/configure-registry-json.md
@@ -68,7 +68,7 @@ This creates the `registry.json` file at `C:\ProgramData\DockerDesktop\registry.
 On Mac, you can use the following methods to create a `registry.json` file.
 
 
-####  Create registry.json when installing Docker Desktop on Mac
+#### Create registry.json when installing Docker Desktop on Mac
 
 To automatically create a registry.json file when installing Docker Desktop, download `Docker.dmg` and run the following commands in a terminal from the directory containing `Docker.dmg`. Replace `myorg` with your organization's name.
 
@@ -78,7 +78,7 @@ $ sudo /Volumes/Docker/Docker.app/Contents/MacOS/install --allowed-org=myorg
 $ sudo hdiutil detach /Volumes/Docker
 ```
 
-####  Create registry.json manually on Mac
+#### Create registry.json manually on Mac
 
 To manually create a `registry.json` file, run the following commands in a terminal
 and replace `myorg` with your organization's name.
diff --git a/desktop/use-desktop/images.md b/desktop/use-desktop/images.md
index 78e39e4eb7..8442432380 100644
--- a/desktop/use-desktop/images.md
+++ b/desktop/use-desktop/images.md
@@ -20,11 +20,12 @@ It also displays **In Use** tags next to images used by running and stopped cont
 
 The **Images on disk** status bar displays the number of images and the total disk space used by the images.
 
- ## Manage your images
+## Manage your images
 
- Use the **Search** field to search for any specific image.
+Use the **Search** field to search for any specific image.
+
+You can sort images by:
 
- You can sort images by:
 - Name
 - Date created
 - Size
diff --git a/engine/release-notes/prior-releases.md b/engine/release-notes/prior-releases.md
index c933934608..99623e1825 100644
--- a/engine/release-notes/prior-releases.md
+++ b/engine/release-notes/prior-releases.md
@@ -1689,12 +1689,12 @@ by another client (#15489)
 
 ## 1.6.2 (2015-05-13)
 
-###  Runtime
+### Runtime
 - Revert change prohibiting mounting into /sys
 
 ## 1.6.1 (2015-05-07)
 
-###  Security
+### Security
 - Fix read/write /proc paths (CVE-2015-3630)
 - Prohibit VOLUME /proc and VOLUME / (CVE-2015-3631)
 - Fix opening of file-descriptor 1 (CVE-2015-3627)