Fix whitespace and typos (#1481)

* Remove EOL whitespace in files other than docs

* Break paragraphs into lines

See http://rhodesmill.org/brandon/2012/one-sentence-per-line/ for the rationale

* Fix various typos

* Remove EOL whitespace in docs/commands/*.md

docs/commands/debug.md

@@ -2,36 +2,36 @@
 
 `debug` prints a debugging view of the table data. It is useful when you want to get the specific types of the data and while investigating errors.
 
-## Examples 
+## Examples
 
 ```
 ❯ ls | first 2 | debug
 ───┬──────────────────────────────────────────
- # │ <value> 
+ # │ <value>
 ───┼──────────────────────────────────────────
- 0 │ (name=".azure" 
-   │ type="Dir" 
-   │ size=nothing 
-   │ modified=2020-02-09T05:31:39.950305440Z((B 
-   │ mdate)) 
- 1 │ (name=".cargo" 
-   │ type="Dir" 
-   │ size=nothing 
-   │ modified=2020-01-06T05:45:30.933303081Z((B 
-   │ mdate)) 
+ 0 │ (name=".azure"
+   │ type="Dir"
+   │ size=nothing
+   │ modified=2020-02-09T05:31:39.950305440Z((B
+   │ mdate))
+ 1 │ (name=".cargo"
+   │ type="Dir"
+   │ size=nothing
+   │ modified=2020-01-06T05:45:30.933303081Z((B
+   │ mdate))
 ───┴──────────────────────────────────────────
 ❯ ls | last 8 | get type | debug
 ───┬─────────
- # │ <value> 
+ # │ <value>
 ───┼─────────
- 0 │ "Dir" 
- 1 │ "Dir" 
- 2 │ "File" 
- 3 │ "Dir" 
- 4 │ "File" 
- 5 │ "Dir" 
- 6 │ "Dir" 
- 7 │ "Dir" 
+ 0 │ "Dir"
+ 1 │ "Dir"
+ 2 │ "File"
+ 3 │ "Dir"
+ 4 │ "File"
+ 5 │ "Dir"
+ 6 │ "Dir"
+ 7 │ "Dir"
 ───┴─────────
 ❯ open --raw Cargo.toml | size | debug
 (lines=271 words=955 chars=7855 max length=7856)