Add release notes for query joins

release-content/0.14/release-notes/11535_Query_Joins.md

@@ -1 +1,21 @@
-TODO
+Queries can now be combined, returning the data for entities that are contained in both queries.
+
+```rust
+fn socratic_deduction_the_hard_way(mut all_men: Query<&Man>, mut all_mortals: Query<&Mortal>){
+    let n_men = all_men.iter().len();
+    let n_mortals = all_mortals.iter().len();
+
+    // This check is necessary but not sufficient
+    assert_eq!(n_men, n_mortals);
+
+    // Only entities found in *both* queries will be found in this query
+    let men_and_mortals: QueryLens<&Man, &Mortal> = all_men.join(all_mortals);
+    let n_mortal_men = men_and_mortals.iter().len();
+
+    // By contrast, this check is both necessary and sufficient!
+    assert_eq!(n_men, n_mortal_men);
+}
+```
+
+If you're familiar with database terminology, this is an ["inner join"](https://www.w3schools.com/sql/sql_join.asp).
+Other types of query joins are on the metaphorical table: please consider taking a crack at the [follow-up issue](https://github.com/bevyengine/bevy/issues/13633).

release-content/0.14/release-notes/_release-notes.toml

@@ -74,7 +74,7 @@ file_name = "11989_Implement_the_AnimationGraph_allowing_for_multiple_animati.md
 
 [[release_notes]]
 title = "Query Joins"
-authors = ["@hymm","@alice-i-cecile"]
+authors = ["@hymm"]
 url = "https://github.com/bevyengine/bevy/pull/11535"
 file_name = "11535_Query_Joins.md"