Update direct-db-connection.md

I see what you're saying. Is this better? I reworded slightly and swapped a few others around.

If this isn't better, I'm happy to change again.

docs/sources/reference/direct-db-connection.md

@@ -52,9 +52,8 @@ panel with in pixels. Thus, Grafana always gets data in necessary resolution.
 
 ## Functions usage with Direct DB Connection
 
-There's only one function affecting backend. This function is `consolidateBy`. It changes what data comes from 
+There's only one function affecting the backend. This function is `consolidateBy`. It changes what data comes from 
-the backend. Other functions still work on the client side and transform data come from the backend. So you should
+the backend. Other functions still work on the client side and transform data that comes from the backend. So you should
-clearly understand that you work with pre-aggregated data (by AVG, MAX, MIN, etc). For example, you want to group 
+clearly understand that this is pre-aggregated data (by AVG, MAX, MIN, etc). 
-values by 1 hour interval and `max` function. But if you just apply `groupBy(10m, max)` function, result will be wrong,
+
-because you transform data aggregated by default `AVG` function. You should use `consolidateBy(max)` coupled with
+For example, say you want to group values by 1 hour interval and `max` function. If you just apply `groupBy(10m, max)` function, your result will be wrong, because you would transform data aggregated by default `AVG` function. You should use `consolidateBy(max)` coupled with `groupBy(10m, max)` in order to get a precise result.
-`groupBy(10m, max)` in order to get precise result.