docs: Document a few undocumented annotations

Annotation-Explanation.adoc

@@ -44,3 +44,11 @@ If that is done, you can find a `package-info.java` file within the package affe
 */
 package com.sk89q.worldedit.world.block;
 -----------------
+
+== Undocumented annotations
+Specific changes are not annotated:
+
+* `com.fastasyncworldedit.core.configuration.Caption` in `com.sk89q.worldedit` packages have been changed from
+`com.sk89q.worldedit.util.formatting.text.Text` to allow the usage of color codes for messages.
+
+* Certain Log4J loggers have been adjusted to use the proper format of placeholders.

worldedit-bukkit/src/main/java/com/fastasyncworldedit/bukkit/regions/plotsquared/FaweDelegateSchematicHandler.java

@@ -235,10 +235,8 @@ public class FaweDelegateSchematicHandler {
                     Clipboard clip = schematicReader.read();
                     return new Schematic(clip);
                 } catch (IOException e3) {
+                    LOGGER.warn("{} | {} : {}", is, is.getClass().getCanonicalName(), e.getMessage());
                     e.printStackTrace();
-                    LOGGER.warn(
-                            is + " | " + is.getClass().getCanonicalName() + " is not in GZIP format : " + e
-                                    .getMessage());
                 }
             }
         }