diff --git a/Lab4/AYCT-app-LukaszJedyk.png b/Lab4/AYCT-app-LukaszJedyk.png
new file mode 100644
index 0000000..ef97c71
Binary files /dev/null and b/Lab4/AYCT-app-LukaszJedyk.png differ
diff --git a/Lab4/ramon_dyzman_screenshot.jpg b/Lab4/AYCT-app-RamonDyzman.jpg
similarity index 100%
rename from Lab4/ramon_dyzman_screenshot.jpg
rename to Lab4/AYCT-app-RamonDyzman.jpg
diff --git a/README.md b/README.md
index c1a09af..e61dfa8 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Core element repository:
 https://git.wmi.amu.edu.pl/s415366/pbr-ayct-core
 
 Backend application repository:
-https://git.wmi.amu.edu.pl/s434708/pbr-ayct-backend/
+https://git.wmi.amu.edu.pl/s434708/pbr-ayct-backend
 
 Frontend application repository:
 https://git.wmi.amu.edu.pl/s470609/pbr-ayct-frontend
\ No newline at end of file