Rewrite into submodule repo

.gitignore

@@ -1 +0,0 @@
-build/

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "build"]
+	path = build
+	url = https://github.com/iv-org/invidious
+[submodule "companion"]
+	path = companion
+	url = https://github.com/iv-org/invidious-companion

README.md

@@ -26,18 +26,16 @@ You'll have to set these up yourself:
 
 Do this in a separate dir (for example /srv/invidious) under non-root permissions
 
-1. `git clone https://github.com/Sommerwiesel/invidious-nerdvpn .`
-2. `git clone https://github.com/iv-org/invidious build`
-3. `git clone https://github.com/iv-org/invidious-companion companion`
-4. Modify the patches under invidious-nerdvpn/patches to your needs (i.e. change branding) and then run `./patch.sh`
-5. `./build.sh development` for the development image or `./build.sh release` for the production image
-6. `build.sh companion` to build the invidious companion
+1. `git clone --recurse-submodules https://github.com/Sommerwiesel/invidious-nerdvpn .`
+2. Modify the patches under invidious-nerdvpn/patches to your needs (i.e. change branding) and then run `./patch.sh`
+3. `./build.sh development` for the development image or `./build.sh release` for the production image
+4. `build.sh companion` to build the invidious companion
 
 # Update instructions
 
-1. Run  `./revert.sh` to remove all patches
-2. Update both repos (build and companion) via `git pull`
-3. Run the steps 5 and 6 again from the run instructions
+1. `./revert.sh` to remove all patch-modifications
+2. `git pull --recurse-submodules`
+3. Run the steps 3 and 4 again from the run instructions
 
 # Run instructions (docker compose)