Update src/level-ext.adoc

Signed-off-by: Alexander Richardson <mail@alexrichardson.me>

Author: arichardson

src/level-ext.adoc

@@ -90,7 +90,7 @@ endif::[]
 11+| *Quadrant 3: Capability data read/write*
 11+| bit[2] = write, bit[1:0] = store level. R and C implicitly granted.
 11+| _Reserved bits for future extensions must be 1 so they are implicitly granted_
-|Bits[4:3]| R | W | C | LM | EL | SL    | X | ASR | Mode^2^ |
+|Bits[4:3]| R | W | C | LM | EL | SL    | X | ASR | Mode^1^ |
 | 0-2   10+| reserved
 | 3       | ✔ |   | ✔ | ✔  | ✔  | 0^2^  |   |     | N/A | Data & Cap R0
 | 4       | ✔ | ✔ | ✔ | ✔  | ✔  | _(3)_ |   |     | N/A | _Reserved_ when `LVLBITS=1` ^3^