Apply suggestions from code review

Co-authored-by: Michał Olender <92638966+TC-MO@users.noreply.github.com>

Author: patrikbraborec

docs/01_introduction/quick-start.mdx

@@ -13,7 +13,7 @@ import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 import CodeBlock from '@theme/CodeBlock';
 
-## Step 1: Creating Actors
+## Step 1: Create Actors
 
 To create and run Actors in Apify Console, refer to the [Console documentation](/platform/actors/development/quick-start/web-ide).
 
@@ -29,7 +29,7 @@ This will create a new folder called `my-first-actor`, download and extract the
 
 ![actor create command run](./images/apify-create.gif)
 
-## Step 2: Running the Actor
+## Step 2: Run Actors
 
 To run the Actor, you can use the [`apify run` command](/cli/docs/reference#apify-run):
 
@@ -46,7 +46,7 @@ This command:
 
 The Actor input, for example, will be in `storage/key_value_stores/default/INPUT.json`.
 
-## Step 3: Understanding Actor structure
+## Step 3: Understand Actor structure
 
 All Python Actor templates follow the same structure.