RFC: "Insertion" fuzzer should also consider prepending letters

I hit a case in which dnstwist did not catch a twisted domain since a letter was prepended to the domain by someone registering a "typo domain".

It seems the current "insertion" fuzzer never prepends. Modifying the code at:

dnstwist/dnstwist.py

Line 709 in f96ad84

for i in range(1, len(self.domain)-1):

to:

for i in range(0, len(self.domain)-1):

lets dnstwist detect the registered domain.

Is this limitation of the insertion fuzzer on purpose, or would it be ok to lift it?
If yes (and if it helps), I can of course create a PR.

This has been changed in commit e4c92a7. Thank you for your contribution.

Many thanks, both for accepting this change and of course for maintaining dnstwist!
I think then the issue can be closed (unless you want to keep it open until this enters a release of course).

Closing, since this is now released, thanks again! 👍