fix links; lec 11 example

homework/hw04.md

@@ -9,8 +9,7 @@ $\lambda$-expression that your evaluator can evaluate.
 Your solution should follow Lecture 11, where I show how to create a 
 type constructor `Parser` 
 and make it into an instance of `Monad`.
-Create a module `Parser.hs` containing the code from [Parser module section](#parser-module)
-that you import into your solution.
+Create a module [`Parser.hs`](https://github.com/aicenter/FUP/blob/main/lectures/Parser.hs) that you import into your solution.
 
 The parser should be implemented as a Haskell module called `Hw4`. 
 Note the capital `H`. The
@@ -30,7 +29,7 @@ import Hw3
 ```
 
 There are four imports. The first two necessary libraries so that the definitions from 
-Lecture 11 work. The third is the module `Parser` whose code is [here](#parser-module). 
+Lecture 11 work. The third is the module `Parser` whose code is [here](https://github.com/aicenter/FUP/blob/main/lectures/Parser.hs). 
 The last import is your previous homework assignment. So be sure that you have
 your `Hw3.hs`
 and `Parser.hs`

lectures/index.md

@@ -86,6 +86,7 @@ We discuss some more examples of type classes, most importantly `Functor`s.
 
 [Slides](https://github.com/aicenter/FUP/blob/main/lectures/lecture11.pdf).
 [Log](https://github.com/aicenter/FUP/blob/main/lectures/lecture11.hs).
+[`Parser.hs`](https://github.com/aicenter/FUP/blob/main/lectures/Parser.hs).
 
 
 ## Old recorded lectures

lectures/lecture11.md

@@ -303,7 +303,7 @@ instance Monad Parser where
 𝝺> parse (item >>= \c -> if c == 'a' then item else return ' ') "abc"
 Just ('b', "c")
 
-𝝺> parse (item >>= \c -> if c == 'a' then item else return ' ') "abc"
+𝝺> parse (item >>= \c -> if c == 'a' then item else return ' ') "bbc"
 Just (' ', "bc")
 ```