Fix missing part of sentence
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/docs/3.0-migration-guide.md b/docs/3.0-migration-guide.md
index ef6df7a..bb21ded 100644
--- a/docs/3.0-migration-guide.md
+++ b/docs/3.0-migration-guide.md
@@ -320,7 +320,7 @@
function.
The API is changed to include the parameter `critical` which allow to mark an
-extension included in a CSR as critical. To get the previous behavior pass TODO
+extension included in a CSR as critical. To get the previous behavior pass 0.
TLS now favors faster curves over larger curves
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