Add a config for the welcome bot:

https://github.com/behaviorbot/welcome

Signed-off-by: Geoff Hutchison <geoff.hutchison@gmail.com>

.github/config.yml

@@ -0,0 +1,18 @@
+# Configuration for welcome - https://github.com/behaviorbot/welcome
+
+# Configuration for new-issue-welcome - https://github.com/behaviorbot/new-issue-welcome
+
+# Comment to be posted to on first time issues
+newIssueWelcomeComment: >
+  Thanks for opening your first issue here! Please try to include example files and screenshots if possible.
+  If you're looking for support, please post on our forum: https://discuss.avogadro.cc/
+# Configuration for new-pr-welcome - https://github.com/behaviorbot/new-pr-welcome
+
+# Comment to be posted to on PRs from first time contributors in your repository
+newPRWelcomeComment: >
+  Thanks for opening this pull request! Please check out our contributing guidelines and check for the automated tests.
+# Configuration for first-pr-merge - https://github.com/behaviorbot/first-pr-merge
+
+# Comment to be posted to on pull requests merged by a first time user
+firstPRMergeComment: >
+  Congrats on merging your first pull request! 🎉 Thanks for making Avogadro better for everyone!