Most of the alerts are false positives and they are suppressed, but it looks like a good idea to show the overall code quality as LGTM badge.
See LGTM report.
This pull request fixes 6 alerts when merging 5535c565fb9a874200ba3822658677cdf1ef6433 into 035260609f1ae005972a29bc69b67ffe4b3d2af2 - view on LGTM.com
Most of the alerts are false positives and they are suppressed, but it looks like a good idea to show the overall code quality as LGTM badge. See LGTM report.