Standardise code directory names

[ShadowMitia]

This PR standardises all directories that might have different names for the same language. Eg. c++ -> cpp. This should help with #906.

For go/golang like names I decided to use only the name (dropping the lang part).

[henrikac]

looks like you forgot to update the reference to these code examples in <algorithm>.md e.g. tree_traversal/tree_traversal.md

[ShadowMitia]

Oooups 😅

[ShadowMitia]

For reference I renamed folders with this command find . -name golang -type d | rename 's/golang/go/' from the root of AAA.

[ShadowMitia]

For reference, this command helps rename paths in files grep -RiIl 'c++' | xargs sed -i 's/c++/cpp/g'. You have to double check because it might rename things that are not paths (eg. example command in C++ which has a -std=c++17 flag).

[henrikac]

The changes in the "Files changed" tap looks fine to me.

You have to double check because it might rename things that are not paths (eg. example command in C++ which has a -std=c++17 flag).

This is, imo, something that you should have checked before pushing ;)

[ShadowMitia]

Nah, I would never do that. I just forgot to change the paths in all the files that needed it. That's perfectly fine 😁

What I REALLY shouldn't do is work on contributions late at night.

[ntindle]

LGTM

[ntindle]

Lots of files changed here. Would appreciate two reviews for this one

[ShadowMitia]

Also let me know if there are other folders that need renaming.

[ntindle]

I would prefer to do them in a separate PR if so due to size and risk mitigation

[ShadowMitia]

Fair enough

[leios]

I also double-checked and I think its good. Thanks again for all the effort here!