try ruby as language

metadata-structure/metadata-structure.md

@@ -37,7 +37,7 @@ The structure of these are the same bar the keys to the `plotSettingsControl` wh
 
 A useful visualisation that I'll keep referring to so that we don't get lost in the json nestings is (note that `indicators` is not expanded as this just contains metadata about the indicator values such as their format which isn't relevant to the metadata structure):
 
-```elixir
+```ruby
 ├── filterTypes[]
 │   ├── id
 │   ├── column_id
@@ -69,7 +69,7 @@ This is just a full version of the json schema.
 
 ## Filters
 
-```elixir
+```ruby
 ├── filterTypes[] # here
 │   ├── id # 1
 │   ├── column_id # 2
@@ -105,7 +105,7 @@ The `filterTypes` key is the simplest. It is an array of all the filters that ca
 
 ## Plot Settings Control
 
-```elixir
+```ruby
 ├── filterTypes[]
 │   ├── id
 │   ├── column_id
@@ -145,7 +145,7 @@ The plot settings controls is an object with keys of the relevant plot name (e.g
 
 ## Settings
 
-```elixir
+```ruby
 ├── filterTypes[]
 │   ├── id
 │   ├── column_id
@@ -182,7 +182,7 @@ The `settings` completely determine the `filters` and their `selections`. The ne
 
 ## Effects
 
-```elixir
+```ruby
 ├── filterTypes[]
 │   ├── id # a
 │   ├── column_id
@@ -213,7 +213,7 @@ The `settings` completely determine the `filters` and their `selections`. The ne
 
 For this section we will need a more detailed view of the effects structure
 
-```elixir
+```ruby
 ├── setFilters[] # 1
 │   ├── filterId # 1.1
 │   ├── label # 1.2