simple-cipher, two-fer: READMEs from problem-specifications

exercises/simple-cipher/README.md

@@ -61,10 +61,7 @@ substitution cipher a little more fault tolerant by providing a source
 of randomness and ensuring that the key contains only lowercase letters.
 
 If someone doesn't submit a key at all, generate a truly random key of
-at least 100 characters in length.
-
-If the key submitted is not composed only of lowercase letters, your
-solution should handle the error in a language-appropriate way.
+at least 100 alphanumeric characters in length.
 
 ## Extensions
 

exercises/two-fer/README.md

@@ -2,15 +2,28 @@
 
 `Two-fer` or `2-fer` is short for two for one. One for you and one for me.
 
+Given a name, return a string with the message:
+
 ```text
-"One for X, one for me."
+One for X, one for me.
 ```
 
-When X is a name or "you".
+Where X is the given name.
+
+However, if the name is missing, return the string:
+
+```text
+One for you, one for me.
+```
 
-If the given name is "Alice", the result should be "One for Alice, one for me."
-If no name is given, the result should be "One for you, one for me."
+Here are some examples:
 
+|Name    | String to return 
+|:------:|:-----------------: 
+|Alice   | One for Alice, one for me. 
+|Bob     | One for Bob, one for me.
+|        | One for you, one for me.
+|Zaphod  | One for Zaphod, one for me.
 
 ## Rust Installation
 
@@ -67,7 +80,7 @@ If you want to know more about Exercism, take a look at the [contribution guide]
 
 ## Source
 
-[https://en.wikipedia.org/wiki/Two-fer](https://en.wikipedia.org/wiki/Two-fer)
+[https://github.com/exercism/problem-specifications/issues/757](https://github.com/exercism/problem-specifications/issues/757)
 
 ## Submitting Incomplete Solutions
 It's possible to submit an incomplete solution so you can see how others have completed the exercise.