Update README.md

Author: dg92

README.md

@@ -1,6 +1,6 @@
 Live app link - https://cryptic-sierra-27182.herokuapp.com/
 
-Read the blog post - https://overflowjs.com/Image-Processing-In-Reactjs-Part-1.html
+Read the blog post - https://overflowjs.com/posts/Image-Processing-In-Reactjs-Part-1.html
 
 ## Used libs
 https://material-ui.com