update home displayed pictures, keep its position consistent when sliding and rendering (#901)

diff --git a/static/img/home/2_1.jpg b/static/img/home/2_1.jpg
index c5cfafc..18bf335 100644
--- a/static/img/home/2_1.jpg
+++ b/static/img/home/2_1.jpg
Binary files differ
diff --git a/static/img/home/2_2.jpg b/static/img/home/2_2.jpg
index 608b6e8..98a45dd 100644
--- a/static/img/home/2_2.jpg
+++ b/static/img/home/2_2.jpg
Binary files differ
diff --git a/static/img/home/2_3.jpg b/static/img/home/2_3.jpg
index 22d4cc0..ae68490 100644
--- a/static/img/home/2_3.jpg
+++ b/static/img/home/2_3.jpg
Binary files differ
diff --git a/static/img/home/2_4.jpg b/static/img/home/2_4.jpg
index c27a801..7d15077 100644
--- a/static/img/home/2_4.jpg
+++ b/static/img/home/2_4.jpg
Binary files differ
diff --git a/static/img/home/2_5.jpg b/static/img/home/2_5.jpg
index 37b25fe..dc01b92 100644
--- a/static/img/home/2_5.jpg
+++ b/static/img/home/2_5.jpg
Binary files differ
diff --git a/static/img/home/2_6.jpg b/static/img/home/2_6.jpg
index 7d001c0..d19caa9 100644
--- a/static/img/home/2_6.jpg
+++ b/static/img/home/2_6.jpg
Binary files differ
diff --git a/static/img/home/2_7.jpg b/static/img/home/2_7.jpg
index 406567d..67963e0 100644
--- a/static/img/home/2_7.jpg
+++ b/static/img/home/2_7.jpg
Binary files differ
diff --git a/static/img/home/2_8.jpg b/static/img/home/2_8.jpg
index f448b57..d8eb54e 100644
--- a/static/img/home/2_8.jpg
+++ b/static/img/home/2_8.jpg
Binary files differ