typos and markdown fixes

Author: janis-bhm

crates/bevy_ecs/src/schedule/condition.rs

@@ -1428,9 +1428,9 @@ mod tests {
         }
 
         // `test_true` and `test_false` can't fail like the systems can, and so
-        // we use them to model the short circuiting behaviour of rust's logical
+        // we use them to model the short circuiting behavior of rust's logical
         // operators. The goal is to end up with a composite number that
-        // describes rust's behaviour and compare that to the result of the
+        // describes rust's behavior and compare that to the result of the
         // combinators.
 
         // we expect `true() || false()` to yield `true`, and short circuit

release-content/migration-guides/combinator_system.md

@@ -13,10 +13,10 @@ Specifically, the combinators act as follows:
 | Combinator | Rust Equivalent |
 |:----------:|:---------------:|
 | `and`      | `a && b`        |
-| `or`       | `a || b`        |
+| `or`       | `a \|\| b`      |
 | `xor`      | `a ^ b`         |
 | `nand`     | `!(a && b)`     |
-| `nor`      | `!(a || b)`     |
+| `nor`      | `!(a \|\| b)`   |
 | `xnor`     | `!(a ^ b)`      |
 
 ```rust