modified git lg, vimrc comment

gitconfig

@@ -8,7 +8,7 @@
     p = pull --rebase
     s = status -sb
     lv = log --pretty=format:"%C(yellow)%h%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate --numstat
-    lg = log --pretty=format:"%C(yellow)%h\\ %ad%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate --date=relative
+    lg = log -- graph --pretty=format:"%C(yellow)%h\\ %ad%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate --date=relative
     grep = grep -Ii
     ready = rebase -i @{u}
 [push]