Auto-generate markdown command docs (#4451)

* Finish updating

* a couple improvements

* Update renames

* cleanup examples

docs/commands/uniq.md

@@ -1,50 +1,46 @@
-# uniq
+---
+title: uniq
+layout: command
+version: 0.59.0
+---
 
-Returns unique rows or values from a dataset.
+Return the unique rows.
+
+## Signature
+
+```> uniq --count --repeated --ignore-case --unique```
+
+## Parameters
+
+ -  `--count`: Count the unique rows
+ -  `--repeated`: Count the rows that has more than one value
+ -  `--ignore-case`: Ignore differences in case when comparing
+ -  `--unique`: Only return unique values
 
 ## Examples
 
-Given a file `test.csv`
-
-```csv
-first_name,last_name,rusty_at,type
-Andrés,Robalino,10/11/2013,A
-Andrés,Robalino,10/11/2013,A
-Jonathan,Turner,10/12/2013,B
-Yehuda,Katz,10/11/2013,A
-```
-
+Remove duplicate rows of a list/table
 ```shell
-> `open test.csv | uniq`
-━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━┯━━━━━━━━━━━━┯━━━━━━
- # │ first_name │ last_name │ rusty_at   │ type
-───┼────────────┼───────────┼────────────┼──────
- 0 │ Andrés     │ Robalino  │ 10/11/2013 │ A
- 1 │ Jonathan   │ Turner    │ 10/12/2013 │ B
- 2 │ Yehuda     │ Katz      │ 10/11/2013 │ A
-━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━┷━━━━━━━━━━━━┷━━━━━━
+> [2 3 3 4] | uniq
 ```
 
+Only print duplicate lines, one for each group
 ```shell
-> `open test.csv | get type | uniq`
-━━━┯━━━━━━━━━
- # │
-───┼─────────
- 0 │ A
- 1 │ B
-━━━┷━━━━━━━━━
+> [1 2 2] | uniq -d
 ```
 
-### Counting
-
-`--count` or `-c` is the flag to output a `count` column.
-
+Only print unique lines lines
 ```shell
-> `open test.csv | get type | uniq -c`
-───┬───────┬───────
- # │ value │ count
-───┼───────┼───────
- 0 │ A     │     3
- 1 │ B     │     2
-───┴───────┴───────
+> [1 2 2] | uniq -u
 ```
+
+Ignore differences in case when comparing
+```shell
+> ['hello' 'goodbye' 'Hello'] | uniq -i
+```
+
+Remove duplicate rows and show counts of a list/table
+```shell
+> [1 2 2] | uniq -c
+```
+