Nu Shell Updates - Week #12

1st chunk of `blog/2019-11-15-twin0012.md`

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# This week in Nu #12

- andrasio added new `histogram` and `split-by` commands ([#954](https://github.com/nushell/nushell/pull/954))
- jonathandturner renamed `read` to `parse` ([#944](https://github.com/nushell/nushell/pull/944))
- jonathandturner also added a new `format` command ([#945](https://github.com/nushell/nushell/pull/945))
- drmason13 added the ability to configure the separator used in `from-csv` ([#943](https://github.com/nushell/nushell/pull/943))
- coolshaurya, sebastian-xyz, rtlechow, helped with writing more documentation ([#964](https://github.com/nushell/nushell/pull/964), [#965](https://github.com/nushell/nushell/pull/965), [#961](https://github.com/nushell/nushell/pull/961), [#950](https://github.com/nushell/nushell/pull/950), [#949](https://github.com/nushell/nushell/pull/949), [#948](https://github.com/nushell/nushell/pull/948))
- uma1317 fixed a bug with moving files ([#960](https://github.com/nushell/nushell/pull/960))
- sebastian-xyz also added more installation instructions to the Nu book ([#41](https://github.com/nushell/book/pull/41))

Title: Nu Shell Updates - Week #12

Summary

This week's Nu shell updates include new `histogram` and `split-by` commands, renaming the `read` command to `parse`, adding a `format` command, allowing configuration of the separator in `from-csv`, documentation improvements, a bug fix for moving files, and more installation instructions in the Nu book.