Fix broken link in Part 5b

The link in file part5b.md was broken and has been corrected to ensure proper navigation and functionality in Part 5b of the project.

Author: vedantjangid

src/content/5/en/part5b.md

@@ -530,7 +530,7 @@ The form closes when a new blog is created.
 
 Separate the form for creating a new blog into its own component (if you have not already done so), and move all the states required for creating a new blog to this component.
 
-The component must work like the <i>NoteForm</i> component from the [material](/en/part5/props_children_and_proptypes) of this part.
+The component must work like the <i>NoteForm</i> component from the [material](/en/part5/props_children_and_proptypes#state-of-the-forms) of this part.
 
 #### 5.7 Blog list frontend, step7