Update README.md (#80)

README.md

@@ -230,7 +230,7 @@ Then, the shared key between `k1` and `k2` is the `sha256` hash of the **compres
 You may want to ask, what if no hash? Briefly, hash can:
 
 1.  Make the shared key's length fixed;
-2.  Make it safer since hash functions can remove "weak bits" in the original computed key. Check the introduction section of this [paper](http://cacr.uwaterloo.ca/techreports/1998/corr98-05.pdf) to know more.
+2.  Make it safer since hash functions can remove "weak bits" in the original computed key. Check the introduction section of this [paper](http://cacr.uwaterloo.ca/techreports/1998/corr98-05.pdf) for more details.
 
 ### AES
 
@@ -247,6 +247,8 @@ Now we have the shared key, and we can use the `nonce` and `tag` to decrypt. Thi
 b'helloworld'
 ```
 
+> Strictly speaking, `nonce` != `iv`, but this is a little bit off topic, if you are curious, you can check [the comment in `utils.py`](https://github.com/kigawas/eciespy/blob/master/ecies/utils.py#L223).
+
 ## Release Notes
 
 ### 0.2.0