Autogenerate missing docs (#3514)

* Autogenerate missing docs

* Update ansi.md

* Rename question mark command docs

* Delete empty?.md

docs/commands/chart-line.md

@@ -0,0 +1,17 @@
+# chart line
+Line charts
+
+## Usage
+```shell
+> chart line (columns) {flags} 
+ ```
+
+## Parameters
+* `(columns)` the columns to chart [x-axis y-axis]
+
+## Flags
+* -h, --help: Display this help message
+* -a, --acc: accumulate values
+* -u, --use <column path>: column to use for evaluation
+* -f, --format <string>: Specify date and time formatting
+