Fixes #1084. I did not add commas to absolutely every occurrence, because (the rule can be loosened when it would affect readability](https://english.stackexchange.com/questions/132359/any-exception-with-commas-before-and-after-for-example). In some instances, I also simplified sentences or replaced 'for example' with 'such as'. But its not a trivial task for a non-native speaker, I feel like I lack the necessary "Sprachgefühl" to be sure about commas.
Fixes #1084. I did not add commas to absolutely every occurrence, because (the rule can be loosened when it would affect readability](https://english.stackexchange.com/questions/132359/any-exception-with-commas-before-and-after-for-example). In some instances, I also simplified sentences or replaced 'for example' with 'such as'. But its not a trivial task for a non-native speaker, I feel like I lack the necessary "Sprachgefühl" to be sure about commas.