Fix typo

bip-DLEQ.mediawiki

@@ -48,7 +48,7 @@ Verifying the proof involves recreating ''R<sub>1</sub>'' and ''R<sub>2</sub>''
 * Let ''R<sub>1</sub> = s⋅G - e⋅A''.
 * Let ''R<sub>2</sub> = s⋅B - e⋅C''.
 
-This can be verified by substituing ''s = (k + e⋅a)'':
+This can be verified by substituting ''s = (k + e⋅a)'':
 
 * ''s⋅G - e⋅A = (k + e⋅a)⋅G - e⋅A = k⋅G + e⋅(a⋅G) - e⋅A = k⋅G + e⋅A - e⋅A = k⋅G''.
 * ''s⋅B - e⋅C = (k + e⋅a)⋅B - e⋅C = k⋅B + e⋅(a⋅B) - e⋅C = k⋅B + e⋅C - e⋅C = k⋅B''.