diff --git a/img/gh.png b/img/gh.png
new file mode 100644
index 0000000..7603c48
Binary files /dev/null and b/img/gh.png differ
diff --git a/img/gh.svg b/img/gh.svg
deleted file mode 100644
index a2426a9..0000000
--- a/img/gh.svg
+++ /dev/null
@@ -1,59 +0,0 @@
-
-
-
-
diff --git a/img/lc.png b/img/lc.png
index ea433db..998c382 100644
Binary files a/img/lc.png and b/img/lc.png differ
diff --git a/img/ld.png b/img/ld.png
index 8185f6f..ffdd7a3 100644
Binary files a/img/ld.png and b/img/ld.png differ
diff --git a/img/leetcode.svg b/img/leetcode.svg
deleted file mode 100644
index 0d738d1..0000000
--- a/img/leetcode.svg
+++ /dev/null
@@ -1 +0,0 @@
-
\ No newline at end of file
diff --git a/img/stack-overflow.svg b/img/stack-overflow.svg
deleted file mode 100644
index 7d3199d..0000000
--- a/img/stack-overflow.svg
+++ /dev/null
@@ -1 +0,0 @@
-
\ No newline at end of file
diff --git a/img/tw.jpg b/img/tw.jpg
deleted file mode 100644
index 386d67b..0000000
Binary files a/img/tw.jpg and /dev/null differ
diff --git a/img/x.png b/img/x.png
index bf910a5..6837434 100644
Binary files a/img/x.png and b/img/x.png differ
diff --git a/index.md b/index.md
index 121d906..e1305a3 100644
--- a/index.md
+++ b/index.md
@@ -58,7 +58,7 @@ GitHub and coding skills:
+ 