Make 0 (beginning) the default value for the index to start from

diff --git a/main.py b/main.py
index d62fb49..cdcc668 100644
--- a/main.py
+++ b/main.py
@@ -24,7 +24,7 @@
 ac = input('GitHub account name: ')
 repo = input('GitHub project name: ')
 pat = input('GitHub personal access token: ')
-start_from_issue = input('Start from (0 = beginning): ')
+start_from_issue = input('Start from (default is 0 = beginning): ') or '0'
 
 Options = namedtuple("Options", "accesstoken account repo")
 opts = Options(accesstoken=pat, account=ac, repo=repo)