Add modules to docs (#6699)

* Support modules in docs

Signed-off-by: Nick Cameron <nrc@ncameron.org>

* shuffle around directories

Signed-off-by: Nick Cameron <nrc@ncameron.org>

---------

Signed-off-by: Nick Cameron <nrc@ncameron.org>

docs/kcl-std/functions/std-units-toInches.md

@@ -0,0 +1,27 @@
+---
+title: "std::units::toInches"
+excerpt: "Convert a number to inches from its current units."
+layout: manual
+---
+
+Convert a number to inches from its current units.
+
+
+
+```kcl
+units::toInches(@num: number(in)): number(in)
+```
+
+
+### Arguments
+
+| Name | Type | Description | Required |
+|----------|------|-------------|----------|
+| `num` | `number(in)` |  | Yes |
+
+### Returns
+
+`number(in)`
+
+
+