Fix: Spelling and grammar updates (#7)

Author: arilivigni

.github/steps/1-preparing.md

@@ -58,7 +58,7 @@ Let's start up our development environment, use copilot to learn a bit about the
 
    > **Tip**: No need to follow Copilot's recommended steps. We already prepared the environment for you.
 
-1. Now that we know a bit more about the project, let's actually try runnning it! In the left sidebar, select the `Run and Debug` tab and then press the **Start Debugging** icon.
+1. Now that we know a bit more about the project, let's actually try running it! In the left sidebar, select the `Run and Debug` tab and then press the **Start Debugging** icon.
 
    <img width="300" alt="image" src="https://github.com/user-attachments/assets/50b27f2a-5eab-4827-9343-ab5bce62357e" />
 

.github/steps/2-first-introduction.md

@@ -1,8 +1,8 @@
 ## Step 2: Getting work done with Copilot
 
-In the previous step, we Copilot was able to help us onboard to the project. That alone is a huge time saver, but now let's get some work done!
+In the previous step, GitHub Copilot was able to help us onboard to the project. That alone is a huge time saver, but now let's get some work done!
 
-We recently learned there is a bug where students are registering for the same activites twice. That simply isn't acceptable, so let's get it fixed!
+We recently learned there is a bug where students are registering for the same activities twice. That simply isn't acceptable, so let's get it fixed!
 
 Unfortunately, we were given little information to solve this problem. So, let's enlist Copilot to help find the problem area and get a potential solution made.