Agile index.md translation changes. I've done it in more readable way and translated missing parts.
Also, I've translated the title as a 2 word combination, because the translation makes sense only with "Agile methodologies".
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Closes#33195
In line #19, I edited the sentence which is meant to say that the computer can not check more than one value at the same time. I added more and deleted some work to get the right translation in Arabic.
* Add example to concisely return object
This trick to directly and concisely return object might be useful for beginners
* Change function name and logic
Change function name and logic to make sense
* Added examples and definition - CSS
- added two examples with the most used values
- added definition
* Added resources to Graceful Degradation - CSS
Added links to multiple articles / post / explanations / tools to help coders understand the concept
* changed triple backtick to single
* fixed https link
- had to fix one link to point to the https site
- removed one link because it doesn't match with the guide provided by FCC
* Add a space between class name and curly brace
Fixed problem with math for number of people, text says 1 in 20 people have color blindness and then it later says that is almost 1 billion people... that would be true if population of earth was 20 billion.
Also fixed one spelling mistake that I noticed.
Added sentence "In order to control the supply of bitcoin, mining is deliberately designed to be difficult and resource-intensive." Also deleted incorrect apostrophe in "Computers".
Added the differences between the working methods of the range() function in Python 2 and 3, including the explanation of the "lazy" method of generating a list of numbers.