docs: Add sections to Text documentation

docs/api/text.md

@@ -11,6 +11,21 @@ interface Text {
 
 ## Static methods
 
+- [Retrieval methods](#retrieval-methods)
+- [Check methods](#check-methods)
+
+### Retrieval methods
+
+###### `Text.matches(text: Text, props: Partial<Text>): boolean`
+
+Check if a `text` matches a set of `props`.
+
+###### `Text.decorations(node: Text, decorations: Range[]): Text[]`
+
+Get the leaves for a text node, given `decorations`.
+
+### Check methods
+
 ###### `Text.equals(text: Text, another: Text, options?): boolean`
 
 Check if two text nodes are equal.
@@ -20,11 +35,3 @@ Options: `{loose?: boolean}`
 ###### `Text.isText(value: any): value is Text`
 
 Check if a `value` implements the `Text` interface.
-
-###### `Text.matches(text: Text, props: Partial<Text>): boolean`
-
-Check if a `text` matches a set of `props`.
-
-###### `Text.decorations(node: Text, decorations: Range[]): Text[]`
-
-Get the leaves for a text node, given `decorations`.