Merge branch 'png-support' of https://github.com/indrasuthar07/Image-Filtering into png-support

Author: indrasuthar07

.gitignore

@@ -0,0 +1,9 @@
+# Ignore all bmp, png, jpeg files
+*.bmp
+*.png
+*.jpeg
+
+# But keep specific ones that start with 'in.' for input ones
+!in.bmp
+!in.png
+!in.jpeg

README.md

@@ -343,6 +343,7 @@ You should not modify any of the function signatures, nor should you modify any
 
 Consider the following grid of pixels, where we’ve numbered each pixel.
 
+
 <img width="528" height="492" alt="Screenshot 2025-10-16 041628" src="https://github.com/user-attachments/assets/5695cd6f-c535-42fc-8f8f-87bfbb362364" />
 
 ## Team and Credits