Added GitHub issue comment anchors

Author: eshanrnh

.lycheeignore

@@ -7,6 +7,7 @@
 ^https://github\.com/umbraco/Umbraco-CMS/tree/.*
 ^https://github\.com/Shazwazza/Articulate/blob/.*/.*#L.*
 ^https://github\.com/umbraco/Umbraco-CMS/blob/.*
+^https://github\.com/.*/issues/[0-9]+#issuecomment-[0-9]+
 
 # Anchor/fragment links causing false positives
 ^https://apidocs\.umbraco\.com/.*/#.*