doc: Added Arch Linux setup instructions

README.md

@@ -267,7 +267,7 @@ python full_eval.py -m <directory with evaluation images>/garden ... --skip_trai
 
 <details>
 <summary><span style="font-weight: bold;">Command Line Arguments for full_eval.py</span></summary>
-  
+
   #### --skip_training
   Flag to skip training stage.
   #### --skip_rendering
@@ -323,7 +323,7 @@ sudo apt install -y libglew-dev libassimp-dev libboost-all-dev libgtk-3-dev libo
 cd SIBR_viewers
 cmake -Bbuild . -DCMAKE_BUILD_TYPE=Release # add -G Ninja to build faster
 cmake --build build -j24 --target install
-``` 
+```
 
 #### Ubuntu 20.04
 Backwards compatibility with Focal Fossa is not fully tested, but building SIBR with CMake should still work after invoking
@@ -331,7 +331,16 @@ Backwards compatibility with Focal Fossa is not fully tested, but building SIBR
 git checkout fossa_compatibility
 ```
 
+#### Arch Linux
+
+```shell
+sudo pacman -S cmake glew assimp boost gtk3 opencv glfw-x11 ffmpeg eigen libxxf86vm embree3
+```
+
+The setup step is the same as Ubuntu.
+
 ### Navigation in SIBR Viewers
+
 The SIBR interface provides several methods of navigating the scene. By default, you will be started with an FPS navigator, which you can control with ```W, A, S, D, Q, E``` for camera translation and ```I, K, J, L, U, O``` for rotation. Alternatively, you may want to use a Trackball-style navigator (select from the floating menu). You can also snap to a camera from the data set with the ```Snap to``` button or find the closest camera with ```Snap to closest```. The floating menues also allow you to change the navigation speed. You can use the ```Scaling Modifier``` to control the size of the displayed Gaussians, or show the initial point cloud.
 
 ### Running the Network Viewer