Check page views over time for string splitting articles

[gewarren]

See #21329 (review).

Articles to check:

• https://docs.microsoft.com/en-us/dotnet/standard/base-types/divide-up-strings - see trends here
• https://docs.microsoft.com/en-us/dotnet/csharp/how-to/parse-strings-using-split - see page view trends here.
• https://docs.microsoft.com/en-us/dotnet/standard/base-types/parsing-strings - see trends here

[gewarren]

Closing out since this is so old and I haven't seen any negative feedback about the change to not use the term "parse".