chore: gitignore embedded docs/chatroom and build_errors.txt

Author: LessUp

.gitignore

@@ -193,4 +193,8 @@ $RECYCLE.BIN/
 .fuse_hidden*
 .directory
 .Trash-*
-.nfs*
+.nfs*
+# Embedded git repos
+docs/chatroom/
+# Build error logs
+build_errors.txt