upd answer

javascript/javascript-quiz.md

@@ -974,10 +974,10 @@ console.log(addFive(3));
 
 #### Q87. Which tag pair is used in HTML to embed JavaScript?
 
-- [ ] `<script></script>`
+- [x] `<script></script>`
 - [ ] `<js></js>`
 - [ ] `<javascript></javascript>`
-- [x] `<code></code>`
+- [ ] `<code></code>`
 
 #### Q88. What would be the result in the console of running this code?
 

matlab/matlab-quiz.md

@@ -910,12 +910,13 @@ a =
 - [ ] `isodd(1:9)`
 - [ ] `1:odd:9`
 
-#### Q58. In MATLAB, the `imfilter` command performs a convolution operation between an image and a matrix. Suppose you have an image loaded in MATLAB into the variable `img` and you apply the following code. The original image appears slightly blurred because the convolution smoothed out the image (removed noise). Why do you think this happened? 
+#### Q58. In MATLAB, the `imfilter` command performs a convolution operation between an image and a matrix. Suppose you have an image loaded in MATLAB into the variable `img` and you apply the following code. The original image appears slightly blurred because the convolution smoothed out the image (removed noise). Why do you think this happened?
 
 ```
 h = ones(5,5)/25;
-imshow(imfilter(img,h)); 
+imshow(imfilter(img,h));
 ```
+
 - [ ] `h` is a Gaussian filter that adds to 1. Its intended effect is to highlight image edges.
 - [x] `h` is an averaging filter uniformly distributed that adds to 1. Its intended effect is to smooth out images (remove noise).
 - [ ] `h` is a Laplacian filter that adds up to 0. Its intended effect is to smooth out images (remove noise).
@@ -952,18 +953,21 @@ a = [ 1 2 3 4];
 - [ ] `c = [7 8 9]`
 
 #### Q62. What do you call in the **command** window to see all the variables in the workspace and their classes?
+
 - [ ] `who`
 - [ ] `vars`
 - [x] `whos`
 - [ ] `who all`
 
-#### Q63. You wrote a new function named `snap` in an m-file and when you call it, you're not getting the output you expect. You previously wrote a different function named `snap`, which you think might also be on the search path. Which command can you use to see if the old `snap` function is being called? 
+#### Q63. You wrote a new function named `snap` in an m-file and when you call it, you're not getting the output you expect. You previously wrote a different function named `snap`, which you think might also be on the search path. Which command can you use to see if the old `snap` function is being called?
+
 - [x] which
 - [ ] who
 - [ ] lookfor
-- [ ] what 
+- [ ] what
 
 #### Q64. What is a reason to save a MAT-file using the `-v7.3` flag?
+
 - [ ] to ensure backward compatibility
 - [ ] to avoid HDF5 overhead in MAT-file
 - [x] to include a variable greater that 2GB