Inconsistent capitalization of "Ethereum"

[wackerow]

Describe the bug
Noticed this first on /en/community page where there are multiple uses of lowercased "ethereum" when referring to the name of the network. Throughout this repo this term is consistently capitalized (in over 4200 places when searching), but in a handful of places this convention is not followed.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://ethereum.org/en/community/
2. ie: r/ethereum - all things ethereum

Expected behavior
Would expect all used of Ethereum the network to be capitalized. This of course does not apply to variable names, references to ethereum.org or other similarly appropriate uses of lower cased 'ethereum.'

Screenshots

Additional context
I will defer on any alteration to the non-English pages at the moment...
Please assign me if you're okay with an update to the English pages and I will put up a PR.

[ryancreatescopy]

great find. Ethereum, the noun, should always be capitalised unless referring to ethereum.org in which case we leave it lower case. Please go ahead and submit your PR!