Update intro.mdx

Author: Meg528

docs/intro.mdx

@@ -7,10 +7,10 @@ sidebar_position: 0
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 
-|Lab goals|Learn about Aggregation Pipelines writing Aggregation Pipelines|
+|Lab goals|Learn about aggregation pipelines writing aggregation pipelines|
 |-|-|
-|What you'll learn|What are Aggregation Pipelines |
-||How are they different from simple MongoDB queries or SQL|
+|What you'll learn|What are aggregation pipelines? |
+||How are they different from simple MongoDB queries or SQL?|
 ||How to use simple pipelines to get data, filter it, show the fields needed|
 ||How to write more advanced pipelines, querying arrays, counting and sorting results|
 ||How to do JOINs using $lookup|
@@ -19,11 +19,11 @@ import TabItem from '@theme/TabItem';
 ||How to write aggregations using popular programming languages (TBD)|
 |Time to complete|90 mins|
 
-In the navigation bar and in some pages, you will notice some icons. Here is their meaning:
+In the navigation bar and on some pages, you will notice some icons. Here are their meanings:
 
 |Icon|Meaning|
 |-|:-|
-|📘|Lecture material - If you're following along in an instructor lead session, they probably have covered this already.|
+|📘|Lecture material - If you're following along in an instructor-led session, they probably have covered this already.|
 |👐|Hands-on content - Get ready to get some work done. You should follow these steps.|
-|💬|Discussion - Item to discuss during the Lab|
-|🦸|Advanced content - This content isn't covered during the lab, but if you're interested in learning more, you can check it out.|
+|💬|Discussion - Item to discuss during the lab|
+|🦸|Advanced content - This content isn't covered during the lab, but if you're interested in learning more, you can check it out.|