indexeddb/rewrite: fix comment typo (#8809)

Author: alxndrsn

packages/node_modules/pouchdb-adapter-indexeddb/src/rewrite.js

@@ -4,7 +4,7 @@ var IDB_NULL = Number.MIN_SAFE_INTEGER;
 var IDB_FALSE = Number.MIN_SAFE_INTEGER + 1;
 var IDB_TRUE = Number.MIN_SAFE_INTEGER + 2;
 
-// These are the same as bellow but without the global flag
+// These are the same as below but without the global flag
 // we want to use RegExp.test because it's really fast, but the global flag
 // makes the regex const stateful (seriously) as it walked through all instances
 var TEST_KEY_INVALID = /^[^a-zA-Z_$]|[^a-zA-Z0-9_$]+/;