Start Invidious, Add OnlyOffice, Fixes (#11)

* Add directory and a link to the install instructions.

* Fix env file if user is in the current directory.

* Initial work on the Invidious configuration and README.

* Add postgres variables and TBD.

* Disabled the Invidious project, it is a lower priority than OnlyOffice and Mail.

* Allow disabled files to stay in the project, truly only block files with backup in the name.

* Create a file for OnlyOffice.

* Change the restart method to ALWAYS.

* Changed from disabled to TBD.

* Add a note to its README as well.

Config/OnlyOffice/docker-compose.yml

@@ -0,0 +1,11 @@
+# 2023-07-25
+# OnlyOffice server for Nextcloud.
+
+version: '3'
+
+services:
+  app:
+    image: onlyoffice/documentserver
+    restart: always
+    ports:
+      - 8000:80