Update john.md

Corrected markdown formatting

github-clinic/john.md

@@ -42,8 +42,10 @@ We can include an image with the same `[]()` pattern, but note the preceding exc
 *Note that this image lives in the folder one level above our `github-clinic` folder, and we indicate that with the two periods `..`* 
 
 Your turn! Change or add something in Markdown and make another commit: write a human-readable commit message, and press the green button to commit changes. 
+
 #### Nests
-Nests are little pockets of home
-*  twigs and feathers and flakes of shell
-   *  but also something else entyre
-      *  list within lists, oh, can this end well?
+
+*  Nests are little pockets of home
+   *  twigs and feathers and flakes of shell
+      *  but also something else entyre
+         *  list within lists, oh, can this end well?