update documentation

Author: chfw

doc/source/index.rst

@@ -76,7 +76,7 @@ A minimal application may look like this::
         app.run()
 
 
-The tiny application exposes two urls: one for file upload and the other for file donload. The former url presents a simple file upload html and responds back in json with the content of the uploaded file. The file upload handler uses `request.get_array` to parse the uploaded file and gets an array back. The parameter **file** is coded in the html form::
+The tiny application exposes two urls: one for file upload and the other for file donload. The former url presents a simple file upload html and responds back in json with the content of the uploaded file. Here is an `example file <https://github.com/chfw/Flask-Excel/blob/master/examples/example_for_upload.csv>` for testing but you can upload any other excel file. The file upload handler uses `request.get_array` to parse the uploaded file and gets an array back. The parameter **file** is coded in the html form::
 
     <input ... name=file>
 

examples/README.rst

@@ -0,0 +1,11 @@
+For tiny_example.py, please upload only file that ends with 'csv', 'tsv', 'csvz', 'tsvz'. And if you upload any other formats, your browser will get::
+
+    Bad Request
+
+    The browser (or proxy) sent a request that this server could not understand.
+
+So in these cases, please insert in the tiny_example.py the following imports according to your file:
+
+import pyexcel.ext.xls # for xls file
+import pyexcel.ext.xlsx # for xlsx file
+import pyexcel.ext.ods # for ods file

examples/example_for_upload.csv

@@ -0,0 +1,4 @@
+id,name
+1,News
+2,Sports
+3,Game