diff --git a/00-intro/nlp-programming-en-00-intro.odp b/00-intro/nlp-programming-en-00-intro.odp
index c678ec5..987be3b 100644
Binary files a/00-intro/nlp-programming-en-00-intro.odp and b/00-intro/nlp-programming-en-00-intro.odp differ
diff --git a/00-intro/nlp-programming-en-00-intro.pdf b/00-intro/nlp-programming-en-00-intro.pdf
index 091a6e7..25b83c8 100644
Binary files a/00-intro/nlp-programming-en-00-intro.pdf and b/00-intro/nlp-programming-en-00-intro.pdf differ
diff --git a/00-intro/nlp-programming-ja-00-intro.odp b/00-intro/nlp-programming-ja-00-intro.odp
index b95ea03..8d5fb6b 100644
Binary files a/00-intro/nlp-programming-ja-00-intro.odp and b/00-intro/nlp-programming-ja-00-intro.odp differ
diff --git a/00-intro/nlp-programming-ja-00-intro.pdf b/00-intro/nlp-programming-ja-00-intro.pdf
index 8ca079f..9a3261d 100644
Binary files a/00-intro/nlp-programming-ja-00-intro.pdf and b/00-intro/nlp-programming-ja-00-intro.pdf differ
diff --git a/misc/vimrc b/misc/vimrc
new file mode 100644
index 0000000..67aa3f3
--- /dev/null
+++ b/misc/vimrc
@@ -0,0 +1,14 @@
+set incsearch
+set nohlsearch
+
+set backspace=2
+
+set smartindent
+set softtabstop=4
+set shiftwidth=4
+set tabstop=4
+set expandtab
+
+set fileencodings=utf-8,euc-jp,iso-2022-jp,sjis
+
+syntax on