tmp(docs); for fix test

Author: zoobestik

docs/topics/null-safety.md

@@ -215,8 +215,9 @@ You can also place a safe call on the left side of an assignment:
 person?.department?.head = managersPool.getManager()
 ```
 
-In the example above, if one of the receivers in the safe call chain is `null`, the assignment is skipped, and the expression on the right is not evaluated at all. For example, if either
-`person` or `person.department` is `null`, the function is not called. Here's the equivalent of the same safe call but with the `if` conditional:
+In the example above, if one of the receivers in the safe call chain is `null`, the assignment is skipped, and the
+expression on the right is not evaluated at all. For example, if either `person` or `person.department` is `null`, the
+function is not called. Here's the equivalent of the same safe call but with the `if` conditional:
 
 ```kotlin
 if (person != null && person.department != null) {
@@ -247,6 +248,7 @@ Instead of writing the complete `if` expression, you can handle this in a more c
 
 ```kotlin
 fun main() {
+    
 //sampleStart
     // Assigns null to a nullable variable  
     val b: String? = null