RFR: Added section for newcomers [v2]

[Jesper Wilhelmsson]

On Wed, 18 Nov 2020 06:07:51 GMT, Stuart Marks <smarks at openjdk.org> wrote:

>> Jesper Wilhelmsson has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - OCA
>>    
>>    Co-authored-by: Magnus Ihse Bursie <mag at icus.se>
>>  - Member of list
>>    
>>    Co-authored-by: Magnus Ihse Bursie <mag at icus.se>
>
> src/index.md line 55:
> 
>> 53: > [`mail.openjdk.java.net`](https://mail.openjdk.java.net/mailman/listinfo)
>> 54: 
>> 55: The OpenJDK community is a friendly place. To keep it that way it's important to keep a professional tone in emails and be aware that the community is global. Many different people with different backgrounds collaborate in these lists. Even though English is the required language for all lists, many Participants speak other languages as their native language. A high tolerance for non-perfect English is expected from anyone joining these lists.
> 
> I'd also suggest that we state that it's preferred to use one's real name on the mailing lists. There are a couple people who post from anonymized mailboxes. That makes things difficult, as sometimes the responses look like spam. Also, I'd suggest that we suggest people list their professional affiliation if appropriate (that is, if they're actually doing work on the JDK on behalf of their employer).

Yes, very good suggestion! Added in my latest commit.

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PR: https://git.openjdk.java.net/guide/pull/38