Update README.md to represent new proposal content location

README.md

@@ -30,7 +30,7 @@ Fill in your thesis details in the [`metadata.typ`](/metadata.typ) file:
 * The start and submission date
 
 ### Write your thesis
-For the actual content of your thesis, there is a dedicated folder named [`/content`](/content) which includes all the chapters and sections of your thesis. This applies for the proposal as well as the thesis (see [`/content/proposal.typ`](/content/proposal.typ) for proposal content). 
+For the actual content of your thesis, there is a dedicated folder named [`/content`](/content) which includes all the chapters and sections of your thesis. This applies for the proposal as well as the thesis (see [`/content/proposal`](/content/proposal) for proposal content). 
 You can add or remove chapters as needed (adapt the [`thesis.typ`](/thesis.typ) with the `#include(...)` accordingly).
 If you need to customize the layout of the template, you can do so by modifying the corresponding file in the [`layout`](/layout) directory.