Document more //ignore-X test headers

tblah · mark-i-m · commit 8a5438b4b150 · 2020-05-29T13:27:03.000-05:00
diff --git a/src/tests/adding.md b/src/tests/adding.md
@@ -134,6 +134,8 @@ Some examples of `X` in `ignore-X`:
   `musl`.
 * Pointer width: `32bit`, `64bit`.
 * Stage: `stage0`, `stage1`, `stage2`.
+* When cross compiling: `cross-compile`
+* When remote testing is used: `remote`
 
 ### Other Header Commands
 
