fix('FeaturesSection' + 'HeroSection'): Fixed 4 spelling errors and improved 1 sentence

[tux300200]

I fixed 4 spelling errors on the home page and improved 1 sentence by avoiding the use of the same word twice. I found and fixed the following things:

1. 'FeaturesSection': Line 148: Removed the comma before "and" (A comma is wrong if you only wanna separate 2 items (so in this case "techy settings" and "terminal hacks"). You can only use this if you have 3 or more items you separated before (this is called an Oxford comma. This was, for example, used in the first paragraph of the "Plenty of games, one place" tile, where the comma before the "or" was right).
2. 'FeaturesSection': Line 107: Removed the comma before "and" for the same reason as 1)
3. 'FeaturesSection': Line 214: Replaced "your" with "you". I also removed the comma before "swiftly"
4. 'HeroSection': Line 42: Fixed that the word "with" was used twice by replacing it with "and" (This is not grammatically incorrect but using the same word twice, especially after a comma, doesn't sound very nice.)