Update README.md

doc/README.md

@@ -17,7 +17,7 @@ C compiler with embedded metalanguage.
 
 
 ## <div id="ar">Architecture<div>
-![alt text](ccmeta.drawio.png)
+![alt text](doc/ccmeta.drawio.png)
 ### [Go to the table of contents](#toc)
 
 ## <div id="bp">Build the project<div>