windows export pdf

app/views/admin/setting/export_pdf.html

@@ -12,7 +12,7 @@
 					<input type="text" class="form-control" placeholder="/usr/local/bin/wkhtmltopdf" name="path" value="{{.str.exportPdfBinPath}}">
 					Leanote use <a target="_blank" href="http://wkhtmltopdf.org">wkhtmltopdf</a> to export pdf. You should install it on your server.
 					<br />
-					Please input the path that wkhtmltopdf installed, e.g. <code>/usr/local/bin/wkhtmltopdf</code>
+					Please input the path that wkhtmltopdf installed, e.g. <code>/usr/local/bin/wkhtmltopdf</code> on mac os/linux or <code><C:\Program Files\wkhtmltopdf\bin\wkhtmltopdf.exe/code> on windows.
 				</div>
 			</div>