document include in bootstrap.example.toml

Signed-off-by: onur-ozkan <[email protected]>

Author: onur-ozkan

src/building/suggested.md

@@ -53,8 +53,9 @@ include = ["cross.toml"]
 
 You can also include extensions within extensions recursively.
 
-**Note:** In the `include` field, the overriding logic follows a right-to-left order. Also, the outer
-extension/config always overrides the inner ones.
+**Note:** In the `include` field, the overriding logic follows a right-to-left order. For example,
+in `include = ["a.toml", "b.toml"]`, extension `b.toml` overrides `a.toml`. Also, parent extensions
+always overrides the inner ones.
 
 ## Configuring `rust-analyzer` for `rustc`