Drop blank lines from input examples

_basics/operators.md

@@ -47,7 +47,7 @@ Liquid includes many logical and comparison operators. You can use operators to
 For example:
 
 ```liquid
-{% raw %}
+{%- raw -%}
 {% if product.title == "Awesome Shoes" %}
   These shoes are awesome!
 {% endif %}
@@ -57,7 +57,7 @@ For example:
 You can do multiple comparisons in a tag using the `and` and `or` operators:
 
 ```liquid
-{% raw %}
+{%- raw -%}
 {% if product.type == "Shirt" or product.type == "Shoes" %}
   This is a shirt or a pair of shoes.
 {% endif %}
@@ -69,7 +69,7 @@ You can do multiple comparisons in a tag using the `and` and `or` operators:
 `contains` checks for the presence of a substring inside a string.
 
 ```liquid
-{% raw %}
+{%- raw -%}
 {% if product.title contains "Pack" %}
   This product's title contains the word Pack.
 {% endif %}
@@ -79,7 +79,7 @@ You can do multiple comparisons in a tag using the `and` and `or` operators:
 `contains` can also check for the presence of a string in an array of strings.
 
 ```liquid
-{% raw %}
+{%- raw -%}
 {% if product.tags contains "Hello" %}
   This product has been tagged with "Hello".
 {% endif %}
@@ -93,7 +93,7 @@ You can do multiple comparisons in a tag using the `and` and `or` operators:
 In tags with more than one `and` or `or` operator, operators are checked in order *from right to left*. You cannot change the order of operations using parentheses — parentheses are invalid characters in Liquid and will prevent your tags from working.
 
 ```liquid
-{% raw %}
+{%- raw -%}
 {% if true or false and false %}
   This evaluates to true, since the `and` condition is checked first.
 {% endif %}
@@ -101,7 +101,7 @@ In tags with more than one `and` or `or` operator, operators are checked in orde
 ```
 
 ```liquid
-{% raw %}
+{%- raw -%}
 {% if true and false and false or true %}
   This evaluates to false, since the tags are checked like this: