Documentation fixes

A few things found when reviewing the CDEPS docs at:
https://escomp.github.io/CDEPS/html/index.html

## Section 2.1

> An input data stream is a time-series of input data files where all the fields in the stream are located *in the same data file*

but later in that section:

> The data for one stream may be all in one file or may be spread over several files.

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meta-data --> metadata (throughout)

## Section 2.2

readind in fields --> reading in fields

----
Capitalization:
> this input helps trap missing data or errors in cycling. to turn off trapping, set the value to 1.0e30 or something similar.

## Section 2.3

Check usage of "CIME" throughout. Usage of "CIME" should be when there is special data model functionality related to the CIME workflow, not as another name for "CDEPS"
> Each CIME data model

## Section 2.4
The "inline" API section does not describe how to actually access the field data itself after initializing and advancing. An additional code snippit and explanation would help.

## Section 2.5
Fix punctuation (also later in this section):
> The stream calendar and model calendar are identical Proceed in the standard way

## Section 4.1

> DATM its own set of supported

## General

- Only DATM has a separate section. Sections are needed for the other data models.