Bug: Fix wording in the "Intro" section

[Ayu Adiati]

Describe the bug

Currently, we have these in the "Intro" section:

• The intro sentence is: "Welcome to the "Getting Started with Open Source" course!"
  But our course's name is "Intro to Open Source with OpenSauced".
• A section with the title "LFG".
  This title is non-inclusive, as non-native English speakers might not know what it stands for without googling.

So, we need to change these.

Suggested Solutions

• Change the intro sentence.

  - Welcome to the "Getting Started with Open Source" course!
  + Welcome to the "Intro to Open Source with OpenSauced" course!

  Code snippet:
  

  intro/01-intro.md

  Line 3 in 59b55ca

   Welcome to the "Getting Started with Open Source" course! This comprehensive course will guide you through the fascinating world of open source and help you become an active contributor. By the end of this course, you should have a solid understanding of how to find, join, and contribute to open source projects, as well as how to develop your open source resume. But first, let's set the stage by discussing the prerequisites, objectives, and expectations for this course. 

• Change the title "LFG 🚀 " to "Let's Get Started 🚀 "

  - ## LFG 🚀
  + ## Let's Get Started 🚀

  Code snippet:
  

  intro/01-intro.md

  Line 53 in 59b55ca

   ## LFG 🚀 

Steps to reproduce

1. Open the 01-intro.md.
2. See the intro sentence and the title of the last section.

Browsers

No response

Additional context (Is this in dev or production?)

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

Contributing Docs

• I agree to follow this project's Contribution Docs

[Mohit Kambli]

.take