Fix broken chaining link homework.md

Author: adamblanchard

javascript2/week2/homework.md

@@ -74,7 +74,7 @@ Copy the movies array in the [movies](homework/movies.js) file. Use this array t
 2. Create an array of movie titles with **long movie titles**
 3. Count the **number of movies** made between 1980-1989 (including both the years)
 4. Create a new array that has an **extra key called tag**. The tag is based on the rating: Good (>= 7), Average (>= 4 and < 7), Bad (< 4)
-5. **Using [chaining](readme.md#Chaining)**, first filter the movies array to only contain the movies rated higher than 6. Now map the movies array to only the rating of the movies.
+5. **Using [chaining](readme.md#chaining)**, first filter the movies array to only contain the movies rated higher than 6. Now map the movies array to only the rating of the movies.
 6. **Count the total number of movies** containing any of following keywords: `Surfer`, `Alien` or `Benjamin`. So if there were 3 movies that contained `Surfer`, 1 with `Alien` and 2 with `Benjamin`, you would return 6. Can you make sure the search is case insensitive?
 7. Create an array of movies where a **word in the title is duplicated**. Fx "Star **Wars**: The Clone **Wars**" the word **Wars** is duplicated. Here are some madeup examples of movies with duplicated words in the title: "**The** three men and **the** pistol", "**Chase** three - The final **chase**"
 8. Calculate the **average rating** of all the movies using [reduce](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce). _Optional_