Update document generation script

operators/collect-into-array.md

@@ -2,52 +2,40 @@
 
 This creates an array using the expression between the square brackets.
 
+
 ## Collect empty
-
 Running
-
 ```bash
 yq eval --null-input '[]'
 ```
-
 will output
-
 ```yaml
 []
 ```
 
 ## Collect single
-
 Running
-
 ```bash
 yq eval --null-input '["cat"]'
 ```
-
 will output
-
 ```yaml
 - cat
 ```
 
 ## Collect many
-
 Given a sample.yml file of:
-
 ```yaml
 a: cat
 b: dog
 ```
-
 then
-
 ```bash
 yq eval '[.a, .b]' sample.yml
 ```
-
 will output
-
 ```yaml
 - cat
 - dog
 ```
+