[feat] add link script

.gitconfig

@@ -20,3 +20,5 @@
   br = branch
 [mergetool]
 	keepBackup = false
+[core]
+  editor = vim

mklink.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+if [ -f "$HOME/.vimrc" ]; then
+  # backup old file
+  mv "$HOME/.vimrc" "$HOME/.vimrc.old"
+fi
+
+ln -sf "`pwd`/.vimrc" "$HOME/.vimrc"
+
+if [ -f "$HOME/.gitconfig" ]; then
+  # backup old file
+  mv "$HOME/.gitconfig" "$HOME/.gitconfig.old"
+fi
+
+ln -sf "`pwd`/.gitconfig" "$HOME/.gitconfig"
+
+if [ ! -d "$HOME/.ssh" ]; then 
+  mkdir -p "$HOME/.ssh"
+fi
+
+if [ -f "$HOME/.ssh/config" ]; then
+  # backup old file
+  mv "$HOME/.ssh/config" "$HOME/.ssh/config.old"
+fi
+
+cp "`pwd`/.ssh/config" "$HOME/.ssh/config"