Fix confusing なら example

Technically the set phrase 乗るなら飲むな exists but using 乗る for "drive" is confusing as a translation so 運転する is better.

Author: Morgawr

src/Section1/Part2/Lesson27.md

@@ -80,11 +80,11 @@ This means that when you say X なら Y, the meaning is close to something like
 Due to this specific nuance of なら, it is the only conditional where the second clause can happen before the preceding one. と, たら, and ば cannot do this.
 
 <pre>
-乗る<b>なら</b>飲まないで
+運転する<b>なら</b>飲まないで
 <b>If</b> you <b>will be</b> driving, do not drink.
 </pre>
 
-The act of 飲む would have to happen before the condition of 乗る, hence the speaker **assumes** 乗る will happen in the hypothetical world where the advice (飲まないで) takes place.
+The act of 飲む would have to happen before the condition of 運転する, hence the speaker **assumes** 運転する will happen in the hypothetical world where the advice (飲まないで) takes place.
 
 Sometimes なら can show up as ならば. The meaning is the same, but it feels more literary.
 
@@ -96,4 +96,4 @@ With verbs and い adjectives, の can sometimes be placed between the verb and
 
 そんなに知りたい<b>なら</b>教えてやる。
 <b>Since</b> you want to know so badly, I’ll tell you
-</pre>
+</pre>