Update tv.post.lu

sites/tv.post.lu/readme.md

@@ -0,0 +1,21 @@
+# tv.post.lu
+
+https://tv.post.lu/en/tv-programme/
+
+### Download the guide
+
+```sh
+npm run grab -- --site=tv.post.lu
+```
+
+### Update channel list
+
+```sh
+npm run channels:parse -- --config=./sites/tv.post.lu/tv.post.lu.config.js --output=./sites/tv.post.lu/tv.post.lu.channels.xml
+```
+
+### Test
+
+```sh
+npm test -- tv.post.lu
+```