Bowling: wrap paragraphs and fix some minor grammar

[shaleh]

The paragraphs rambled without newlines. They are now line wrapped to match
the other exercises.

There was a missing article 'a' in the beginning. The phrasing "after the
throw" is a little confusing. Does this mean either the 2nd or 3rd throws?
No, it means they are knocked down by THIS throw. Update accordingly.

[Insti]

Looks good.

Another minor git commit tip; when you are changing content and formatting try and do each step as a separate commit, so that is easier for the reviewer to see the changes in the diff. It was difficult for me to find the 'after the throw' change as it was hidden among the line reformatting. If they were more commits it would be hopefully easier to find the important differences.

[shaleh]

Will do. Thanks.

[Insti]

Thanks @shaleh ❤️

[petertseng]

I must import this as two commits, not one. The grammar change must go as its separate commit. Here is --word-diff of the changes without the wrapping:

diff --git a/exercises/bowling/description.md b/exercises/bowling/description.md
index 450844e..d619f8e 100644
--- a/exercises/bowling/description.md
+++ b/exercises/bowling/description.md
@@ -1,6 +1,6 @@
Score a bowling game.

Bowling is {+a+} game where players roll a heavy ball to knock down pins
arranged in a triangle. Write code to keep track of the score
of a game of bowling.

@@ -10,9 +10,9 @@ The game consists of 10 frames. A frame is composed of one or two ball throws wi

* An open frame is where a score of less than 10 is recorded for the frame. In this case the score for the frame is the number of pins knocked down.

* A spare is where all ten pins are knocked down [-after-]{+by+} the second throw. The total value of a spare is 10 plus the number of pins knocked down in their next throw.

* A strike is where all ten pins are knocked down [-after-]{+by+} the first throw. The total value of a strike is 10 plus the number of pins knocked down in [-their-]{+the+} next two throws. If a strike is immediately followed by a second strike, then[-we can not total-] the value of {+the+} first strike {+cannot be determined+} until[-they throw-] the ball {+is thrown+} one more time.

Here is a three frame example: