diff --git a/src/static/img/banner_building.png~ b/src/static/img/banner_building.png~
deleted file mode 100644
index c794dfb..0000000
Binary files a/src/static/img/banner_building.png~ and /dev/null differ
diff --git a/src/static/img/banner_environment.png~ b/src/static/img/banner_environment.png~
deleted file mode 100644
index d7bf29f..0000000
Binary files a/src/static/img/banner_environment.png~ and /dev/null differ
diff --git a/src/static/img/banner_prerequisites.png~ b/src/static/img/banner_prerequisites.png~
deleted file mode 100644
index 03a3c0a..0000000
Binary files a/src/static/img/banner_prerequisites.png~ and /dev/null differ