Gerrit ignores <sup>; use Unicode superscript instead.

Change-Id: Ieb49837c3091b058a05d4558fe73248449c718c5
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/44825
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/util/fipstools/acvp/ACVP.md b/util/fipstools/acvp/ACVP.md
index 6b32487..4a93e87 100644
--- a/util/fipstools/acvp/ACVP.md
+++ b/util/fipstools/acvp/ACVP.md
@@ -43,12 +43,12 @@
 
 | Command              | Arguments                 | Outputs |
 |----------------------|---------------------------|---------|
-| 3DES-CBC/decrypt     | Key, ciphertext, IV, num iterations<sup>1</sup> | Result, Previous result |
-| 3DES-CBC/encrypt     | Key, plaintext, IV, num iterations<sup>1</sup> | Result, Previous result |
-| 3DES/decrypt         | Key, input block, num iterations<sup>1</sup> | Result, Previous result |
-| 3DES/encrypt         | Key, input block, num iterations<sup>1</sup> | Result, Previous result |
-| AES-CBC/decrypt      | Key, ciphertext, IV, num iterations<sup>1</sup> | Result, Previous result |
-| AES-CBC/encrypt      | Key, plaintext, IV, num iterations<sup>1</sup> | Result, Previous result |
+| 3DES-CBC/decrypt     | Key, ciphertext, IV, num iterations¹ | Result, Previous result |
+| 3DES-CBC/encrypt     | Key, plaintext, IV, num iterations¹ | Result, Previous result |
+| 3DES/decrypt         | Key, input block, num iterations¹ | Result, Previous result |
+| 3DES/encrypt         | Key, input block, num iterations¹ | Result, Previous result |
+| AES-CBC/decrypt      | Key, ciphertext, IV, num iterations¹ | Result, Previous result |
+| AES-CBC/encrypt      | Key, plaintext, IV, num iterations¹ | Result, Previous result |
 | AES-CCM/open         | Tag length, key, ciphertext, nonce, ad | One-byte success flag, plaintext or empty |
 | AES-CCM/seal         | Tag length, key, plaintext, nonce, ad | Ciphertext |
 | AES-CTR/decrypt      | Key, ciphertext, initial counter, constant 1 | Plaintext |
@@ -59,8 +59,8 @@
 | AES-KW/seal          | (dummy), key, plaintext, (dummy), (dummy) | Ciphertext |
 | AES-KWP/open         | (dummy), key, ciphertext, (dummy), (dummy) | One-byte success flag, plaintext or empty |
 | AES-KWP/seal         | (dummy), key, plaintext, (dummy), (dummy) | Ciphertext |
-| AES/decrypt          | Key, input block, num iterations<sup>1</sup> | Result, Previous result |
-| AES/encrypt          | Key, input block, num iterations<sup>1</sup> | Result, Previous result |
+| AES/decrypt          | Key, input block, num iterations¹ | Result, Previous result |
+| AES/encrypt          | Key, input block, num iterations¹ | Result, Previous result |
 | CMAC-AES             | Number output bytes, key, message | MAC |
 | ctrDRBG/AES-256      | Output length, entropy, personalisation, ad1, ad2, nonce | Output |
 | ECDH/&lt;CURVE&gt;   | X, Y, private key | X, Y, shared key |
@@ -89,7 +89,7 @@
 | SHA2-512/256         | Value to hash             | Digest  |
 | TLSKDF/&lt;1.0\|1.2&gt;/&lt;HASH&gt; | Number output bytes, secret, label, seed1, seed2 | Output |
 
-<sup>1</sup> The iterated block-cipher tests would result in excessive numbers of round trips if the module wrapper handled only basic operations. Thus some ACVP logic is pushed down for these tests so that the inner loop can be handled locally. Either read the [NIST documentation](https://usnistgov.github.io/ACVP/draft-celi-acvp-symmetric.html#name-monte-carlo-tests-for-block) to understand the iteration count and return values or, probably more fruitfully, see how these functions are handled in the `modulewrapper` directory.
+¹ The iterated block-cipher tests would result in excessive numbers of round trips if the module wrapper handled only basic operations. Thus some ACVP logic is pushed down for these tests so that the inner loop can be handled locally. Either read the [NIST documentation](https://usnistgov.github.io/ACVP/draft-celi-acvp-symmetric.html#name-monte-carlo-tests-for-block) to understand the iteration count and return values or, probably more fruitfully, see how these functions are handled in the `modulewrapper` directory.
 
 ## Online operation