Update README.md

Author: josemoracard

exercises/01-hello-world/README.md

@@ -2,32 +2,30 @@
 intro: "https://www.youtube.com/watch?v=awa_yfGgy9s"
 ---
 
-# Learn Python Functions!
+# Welcome to Python Functions!
 
 We are very excited to have you here !! 🎉 😂
 
-Click `next` on the top right of this instructions when you are ready to start.
+Click `next` on the top right of these instructions when you are ready to start.
 
-During this course you will be learning the following concepts:
+During this course, you will be learning the following concepts:
 
-1. Learning how to create and call **functions.***
+1. Learning how to create and call functions.
 
-2. Building your first real **functions**
+2. Building your first real functions.
 
-3. Get comfortable using Python **Lambda Functions**
+3. Get comfortable using Python Lambda Functions.
 
-4. Construct **functions** with parameters.
+4. Construct functions with parameters.
 
-5. Real life examples for **functions**
+5. Real life examples for functions.
 
 ## Contributors
 
 Thanks goes to these wonderful people ([emoji key](https://github.com/kentcdodds/all-contributors#emoji-key)):
 
-1. [Alejandro Sanchez (alesanchezr)](https://github.com/alesanchezr), contribution: (coder) :computer: (idea) 🤔, (build-tests) :warning:, (pull-request-review) :eyes: (build-tutorial) :white_check_mark: (documentation) :book:
-2. [Paolo (plucodev)](https://github.com/plucodev), contribution: (bug reports) :bug:, contribution: (coder), (translation) :earth_americas:
-3. [Marco Gómez (marcogonzalo)](https://github.com/marcogonzalo), contribution: (bug reports) :bug:, (translation) :earth_africa:
+1. [Alejandro Sanchez (alesanchezr)](https://github.com/alesanchezr), contribution: (coder) 💻 (idea) 🤔, (build-tests) ⚠️, (pull-request-review) 🤓, (build-tutorial) ✅, (documentation) 📖
+2. [Paolo (plucodev)](https://github.com/plucodev), contribution: (bug reports) 🐛, (coder) 💻, (translation) 🌎
+3. [Marco Gómez (marcogonzalo)](https://github.com/marcogonzalo), contribution: (bug reports) 🐛, (translation) 🌎
 
-This project follows the
-[all-contributors](https://github.com/kentcdodds/all-contributors)
-specification. Contributions of any kind are welcome!
+This project follows the [all-contributors](https://github.com/kentcdodds/all-contributors) specification. Contributions of any kind are welcome!