another small fix in readme

Author: pablo-sch

docs/README.de.md

@@ -156,7 +156,7 @@ Dieses Projekt hat derzeit keine externen Beiträge oder eine Lizenz.
 
 ### Home Mobile
 
-![Home Mobile](../etc/preview_images/home_mobile.png.png)
+![Home Mobile](../etc/preview_images/home_mobile.png)
 
 ### Create Post
 

docs/README.es.md

@@ -156,7 +156,7 @@ Este proyecto no cuenta con contribuciones externas ni licencia en este momento.
 
 ### Home Mobile
 
-![Home Mobile](../etc/preview_images/home_mobile.png.png)
+![Home Mobile](../etc/preview_images/home_mobile.png)
 
 ### Create Post
 

docs/README.md

@@ -156,7 +156,7 @@ This project currently does not include external contributions or a license.
 
 ### Home Mobile
 
-![Home Mobile](../etc/preview_images/home_mobile.png.png)
+![Home Mobile](../etc/preview_images/home_mobile.png)
 
 ### Create Post
 
@@ -168,4 +168,4 @@ This project currently does not include external contributions or a license.
 
 ### Edit Post
 
-![Edit Post](../etc/preview_images/post_edit.png)
+![Edit Post](../etc/preview_images/post_edit.png) 

etc/TODO List.md

@@ -11,4 +11,4 @@
 9. Apply the DRY principle for links to CSS files in HTML files.
 10. Do not allow the user to make more than one click on a button to avoid problems of duplicates or null elements.
 11. ok - Improve the content of the posts to make them more realistic.
-12. ok - Make the image of the post in my showPosts display correctly for different screen sizes.
+12. ok - Make the image of the post in my showPosts display correctly for different screen sizes.