replaced placeholder content and added children shortcode to landing pages

content/v2.0/query-data/_index.md

@@ -1,14 +1,16 @@
 ---
 title: Query data in InfluxDB
 seotitle: Query data stored in InfluxDB
-description: placeholder
+description: >
+  Learn to query data stored in InfluxDB using Flux and tools such as the InfluxDB
+  user interface and the 'influx' command line interface.
 menu:
   v2_0:
     name: Query data
     weight: 2
 ---
 
-Flux is InfluxData's functional data scripting language designed for querying, analyzing, and acting on data.
+Learn to query data stored in InfluxDB using Flux and tools such as the InfluxDB
-
+user interface and the 'influx' command line interface.
 
 {{< children >}}

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

@@ -1,12 +1,13 @@
 ---
 title: Flux query language
-description: placeholder
+description: Reference articles for Flux functions and the Flux language specification.
 menu:
   v2_0_ref:
     name: Flux query language
     weight: 2
 ---
 
-[Flux functions](/v2.0/reference/flux/functions/)
+The following articles are meant as a reference for Flux functions and the
+Flux language specification.
 
-[Flux language specification](/v2.0/reference/flux/language/)
+{{< children >}}

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

@@ -12,14 +12,4 @@ Flux's functional syntax allows you to retrieve, transform, process, and output
 There is a large library of built-in functions, but you can also create your own
 custom functions to perform operations that suit your needs.
 
-## [Input functions](/v2.0/reference/flux/functions/inputs)
+{{< children >}}
-Input functions define or display information about data sources.
-
-## [Output functions](/v2.0/reference/flux/functions/outputs)
-Output functions yield results or send data to a specified output.
-
-## [Transformation functions](/v2.0/reference/flux/functions/transformations)
-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.

content/v2.0/reference/flux/language/options.md

@@ -1,6 +1,8 @@
 ---
 title: Options
-description: placeholder
+description: >
+  A Flux option represents a storage location for any value of a specified type.
+  Options are mutable. An option can hold different values during its lifetime.
 menu:
   v2_0_ref:
     parent: Flux specification