Small fixes in the KDocs.

Author: ASmirnov-HORIS

plot-api/src/commonMain/kotlin/org/jetbrains/letsPlot/gggrid.kt

@@ -52,8 +52,9 @@ import org.jetbrains.letsPlot.intern.filterNonNullValues
  *   Specifies how guides (legends and colorbars) should be treated in the layout.
  *   - "collect" - collect guides from all subplots, removing duplicates.
  *   - "keep" - keep guides in their original subplots; do not collect at this level.
- *   - "auto" - allow guides to be collected if an upper-level layout uses ``guides="collect"``; otherwise, keep them in subplots.
- * Duplicates are identified by comparing visual properties:
+ *   - "auto" - allow guides to be collected if an upper-level layout uses `guides = "collect"`; otherwise, keep them in subplots.
+ *
+ *   Duplicates are identified by comparing visual properties:
  *   - For legends: title, labels, and all aesthetic values (colors, shapes, sizes, etc.).
  *   - For colorbars: title, domain limits, breaks, and color gradient.
  *

plot-api/src/commonMain/kotlin/org/jetbrains/letsPlot/intern/layer/WithGroupOption.kt

@@ -23,7 +23,7 @@ import org.jetbrains.letsPlot.intern.Options
  *
  * - Use `group = listOf("var1", "var2", ...)` to group by the interaction of multiple variables
  *
- * - Use `group = emptyList()` to disable all the grouping completely
+ * - Use `group = emptyList<Any>()` to disable all the grouping completely
  *
  * @property group Data grouping control (not a true aesthetic).
  *  Use a variable name to group by that variable,