README: remove lgtm.io because they got bought out and shut down by GitHub

https://github.blog/news-insights/product-news/the-next-step-for-lgtm-com-github-code-scanning/

Author: LunNova

README.md

@@ -6,7 +6,6 @@ output = [
 	link(shield('Maven artifact', 'jcenter', '{{name}}', 'blue'), 'https://bintray.com/{{bintrayrepo}}/{{name}}/view'),
 	link(image('License', 'https://img.shields.io/github/license/{{organisation}}/{{name}}.svg'), 'LICENSE') + '  ',
 	link(image('Travis CI', 'https://travis-ci.org/{{organisation}}/{{name}}.svg'), 'https://travis-ci.org/{{organisation}}/{{name}}'),
-	link(image('Coverage', 'https://img.shields.io/lgtm/alerts/g/{{organisation}}/{{name}}'), 'https://lgtm.com/projects/g/{{organisation}}/{{name}}'),
 	link(image('Coverage', 'https://img.shields.io/codecov/c/github/{{organisation}}/{{name}}.svg'), 'https://codecov.io/gh/{{organisation}}/{{name}}/') + '  ',
 	link(image('Discord chat', 'https://img.shields.io/discord/{{discordId}}?logo=discord'), '{{discordInvite}}'),
 	].join('\n');
@@ -15,7 +14,6 @@ output = [
 [![Maven artifact](https://img.shields.io/badge/jcenter-JavaTransformer-blue.svg)](https://bintray.com/minimallycorrect/minimallycorrectmaven/JavaTransformer/view)
 [![License](https://img.shields.io/github/license/MinimallyCorrect/JavaTransformer.svg)](LICENSE)  
 [![Travis CI](https://travis-ci.org/MinimallyCorrect/JavaTransformer.svg)](https://travis-ci.org/MinimallyCorrect/JavaTransformer)
-[![Coverage](https://img.shields.io/lgtm/alerts/g/MinimallyCorrect/JavaTransformer)](https://lgtm.com/projects/g/MinimallyCorrect/JavaTransformer)
 [![Coverage](https://img.shields.io/codecov/c/github/MinimallyCorrect/JavaTransformer.svg)](https://codecov.io/gh/MinimallyCorrect/JavaTransformer/)  
 [![Discord chat](https://img.shields.io/discord/313371711632441344?logo=discord)](https://discord.gg/YrV3bDm)
 <!---freshmark /shields -->