moved custom functions guide into query data guides

content/v2.0/query-data/flux/get-started/syntax-basics.md

@@ -183,7 +183,7 @@ topN = (tables=<-, n) => tables |> sort(desc: true) |> limit(n: n)
 {{% /code-tab-content %}}
 {{< /code-tabs-wrapper >}}
 
-_More information about creating custom functions is available in the [Custom functions](/v2.0/reference/flux/functions/custom-functions) documentation._
+_More information about creating custom functions is available in the [Custom functions](/v2.0/query-data/flux/guides/custom-functions) documentation._
 
 Using the `cpuUsageUser` data stream variable defined above, find the top five data
 points with the custom `topN` function and yield the results.

content/v2.0/query-data/flux/get-started/transform-data.md

@@ -34,7 +34,7 @@ from(bucket:"example-bucket")
 
 ## Flux functions
 Flux provides a number of functions that perform specific operations, transformations, and tasks.
-You can also [create custom functions](/v2.0/reference/flux/functions/custom-functions) in your Flux queries.
+You can also [create custom functions](/v2.0/query-data/flux/guides/custom-functions) in your Flux queries.
 _Functions are covered in detail in the [Flux functions](/v2.0/reference/flux/functions) documentation._
 
 A common type of function used when transforming data queried from InfluxDB is an aggregate function.

content/v2.0/query-data/flux/guides/custom-functions.md

@@ -1,11 +1,12 @@
 ---
 title: Create custom Flux functions
+seotitle: Create custom Flux functions
 description: Create your own custom Flux functions to transform and manipulate data.
 menu:
-  v2_0_ref:
-    name: Custom functions
-    parent: Flux functions
-    weight: 6
+  v2_0:
+    name: Create custom functions
+    parent: How-to guides
+    weight: 8
 ---
 
 Flux's functional syntax allows for custom functions.

content/v2.0/query-data/flux/guides/regular-expressions.md

@@ -6,7 +6,7 @@ menu:
   v2_0:
     name: Regular expressions
     parent: How-to guides
-    weight: 7
+    weight: 9
 ---
 
 Regular expressions (regexes) are incredibly powerful when matching patterns in large collections of data.

content/v2.0/reference/flux/functions/_index.md

@@ -23,7 +23,3 @@ Transformation functions transform or shape your data in specific ways.
 
 ## [Miscellaneous functions](/v2.0/reference/flux/functions/misc)
 Functions that serve miscellaneous purposes when writing Flux scripts.
-
-## [Custom functions](/v2.0/reference/flux/functions/custom-functions)
-Flux's functional syntax allows for custom functions.
-This guide walks through the basics of creating your own function.