Here are two sentences which have been transformed into two different kinds of sentence having a different structure to the first version:
1a) All the employees are huge basketball fans. That makes it a very fun winter.
1b) He couldn’t give me a straight answer. This leaves a lot of room for doubt.
2a) All the employees are huge basketball fans, making it a very fun winter.
2b) He couldn’t give me a straight answer, leaving a lot of room for doubt.
I think it's the use of present participle(ing form) connecting two different sentences into one sentence. Isn't it? Do we use such sentences to show the result of first clause to the second clause ? Or why we use such sentences ?
I think we use such sentences to emphasize our writing(as per the website content refers to), But I don't know what kind of emphasize it is.