Autogenerate missing docs (#3514)

* Autogenerate missing docs

* Update ansi.md

* Rename question mark command docs

* Delete empty?.md

docs/commands/into-string.md

@@ -0,0 +1,51 @@
+# into string
+Convert value to string
+
+## Usage
+```shell
+> into string ...args {flags} 
+ ```
+
+## Parameters
+* ...args: column paths to convert to string (for table input)
+
+## Flags
+* -h, --help: Display this help message
+* -d, --decimals <integer>: decimal digits to which to round
+
+## Examples
+  convert decimal to string and round to nearest integer
+```shell
+> echo 1.7 | into string -d 0
+ ```
+
+  convert decimal to string
+```shell
+> echo 4.3 | into string
+ ```
+
+  convert string to string
+```shell
+> echo '1234' | into string
+ ```
+
+  convert boolean to string
+```shell
+> echo $true | into string
+ ```
+
+  convert date to string
+```shell
+> date now | into string
+ ```
+
+  convert filepath to string
+```shell
+> ls Cargo.toml | get name | into string
+ ```
+
+  convert filesize to string
+```shell
+> ls Cargo.toml | get size | into string
+ ```
+