fix: function name error

apps/base-docs/docs/pages/learn/error-triage/error-triage.mdx

@@ -427,7 +427,7 @@ Fix by changing your code to handle the expected range of values.
 
 
 ```solidity
-function badSubstractionFixed() public pure returns (int) {
+function badSubtractionFixed() public pure returns (int) {
     int first = 1;
     int second = 2;
     return first - second;