Fix wrong link in error (#15672)

Hi y'all, I got an error that leads to a wrong link:
https://bevyengine.org/learn/errors/#b0002

It should be: https://bevyengine.org/learn/errors/b0002


![image](https://github.com/user-attachments/assets/863ae8cd-6a3b-4830-b125-2944a211a737)

crates/bevy_ecs/src/system/builder.rs

@@ -574,7 +574,7 @@ unsafe impl<'w, 's, T: FnOnce(&mut FilteredResourcesBuilder)>
         if !conflicts.is_empty() {
             let accesses = conflicts.format_conflict_list(world);
             let system_name = &meta.name;
-            panic!("error[B0002]: FilteredResources in system {system_name} accesses resources(s){accesses} in a way that conflicts with a previous system parameter. Consider removing the duplicate access. See: https://bevyengine.org/learn/errors/#b0002");
+            panic!("error[B0002]: FilteredResources in system {system_name} accesses resources(s){accesses} in a way that conflicts with a previous system parameter. Consider removing the duplicate access. See: https://bevyengine.org/learn/errors/b0002");
         }
 
         if access.has_read_all_resources() {
@@ -637,7 +637,7 @@ unsafe impl<'w, 's, T: FnOnce(&mut FilteredResourcesMutBuilder)>
         if !conflicts.is_empty() {
             let accesses = conflicts.format_conflict_list(world);
             let system_name = &meta.name;
-            panic!("error[B0002]: FilteredResourcesMut in system {system_name} accesses resources(s){accesses} in a way that conflicts with a previous system parameter. Consider removing the duplicate access. See: https://bevyengine.org/learn/errors/#b0002");
+            panic!("error[B0002]: FilteredResourcesMut in system {system_name} accesses resources(s){accesses} in a way that conflicts with a previous system parameter. Consider removing the duplicate access. See: https://bevyengine.org/learn/errors/b0002");
         }
 
         if access.has_read_all_resources() {