vim.md

@@ -4,6 +4,9 @@
 
 [vim\-jp » Linuxでのビルド方法]( https://vim-jp.org/docs/build_linux.html )
 
+<details>
+<summary>how to build</summary>
+<!-- you must insert blank line -->
 ``` bash
 $ git clone https://github.com/vim/vim.git
 $ cd vim
@@ -65,3 +68,8 @@ Huge version with GTK2 GUI.  Features included (+) or not (-):
 Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK  -pthread -I~/.linuxbrew/Cellar/pcre/8.42/include -I~/.linuxbrew/Cellar/expat/2.2.6/include -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/libpng12 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2   -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1       
 Linking: gcc   -L/usr/local/lib -Wl,--as-needed -o vim   -lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -latk-1.0 -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lfontconfig -lfreetype -lSM -lICE -lXt -lX11 -lXdmcp -lSM -lICE  -lm -ltinfo -lnsl    -lacl -lattr -ldl           
 ```
+</details>
+
+## how to name plugins
+* `*.vim`
+* `vim-*`
\ No newline at end of file