Document boolean type (#19)

Author: mateuszmlc

changelog.mdx

@@ -20,11 +20,12 @@ breaking changes.
 
 
 
-## \[0.3.18\] - 2022-12-30
+## \[0.3.18\] - 2023-01-05
 
 ### Added
 
-  - All fields are now indexed by default. This means that all fields can be queried and sorted without defining an explicit index.
+  - All fields are now indexed by default. This means that all fields can be queried and sorted without defining an explicit index
+  - Added `boolean` type to Polylang
 
 
 ## \[0.3.16\] - 2022-12-30

collections.mdx

@@ -111,7 +111,17 @@ collection CollectionName {
 }
 ```
 
-<Info>Additional types such as arrays, maps and dates will be added soon.</Info>
+#### Field Types
+
+The following types are supported:
+
+- `string`
+- `number`
+- `boolean`
+- `string[]`, `number[]` and `boolean[]`
+- `map<string | number, T>`
+
+<Info>Additional types such as dates will be added soon.</Info>
 
 #### Optional Fields