README.md: add --compilation_mode=dbg

The debug service is not present in release builds anymore,
so the steps below no longer worked.

Change-Id: I1eeb28193a9331fe3850a3cb6b8cb3750b820e2b
Reviewed-on: https://review.monogon.dev/c/monogon/+/755
Tested-by: Jenkins CI
Reviewed-by: Sergiusz Bazanski <serge@monogon.tech>
diff --git a/README.md b/README.md
index 0ae725d..1a444b9 100644
--- a/README.md
+++ b/README.md
@@ -47,12 +47,12 @@
 
 Launch the node:
 
-    scripts/bin/bazel run //:launch
+    scripts/bin/bazel run //:launch -c dbg
     
 Run a kubectl command:
 
-    scripts/bin/bazel run //metropolis/cli/dbg -- kubectl describe
+    scripts/bin/bazel run //metropolis/cli/dbg -c dbg -- kubectl describe
  
 Run tests:
 
-    scripts/bin/bazel test //...
+    scripts/bin/bazel test -c dbg //...