[Misc] Update installation

docs/1.installation.md

@@ -42,7 +42,7 @@ git clone [email protected]:snt-arg/lidar_situational_graphs.git -b feature/multi_f
 
     Lidar SGraphs can can take some time to build depending on the platform and may consume a lot of memory.
     If your computer does not have a lot of RAM is it advised to limit the number of threads make uses with
-    `export MAKEFLAGS="-j <n>`, where `<n>` should be replaced with the max of number of CPUs.
+    `export MAKEFLAGS="-j <n>`, where `<n>` should be replaced with the max of number of CPUs. Change $ROS_DISTRO to your ros2 version.
 
 ```bash
 cd s_graphs && source /opt/ros/$ROS_DISTRO/setup.sh && ./setup.sh
@@ -59,8 +59,9 @@ cd s_graphs && source /opt/ros/$ROS_DISTRO/setup.sh && ./setup.sh
 
 <details>
 
-> [!NOTE]
-> This is an optional older version of room segmentation algorithm which requires ROS1 noetic. There is no hard dependecy on this package so you can easily ignore this step.
+!!! info
+
+    This is an optional older version of room segmentation algorithm which requires ROS1 noetic. There is no hard dependecy on this package so you can easily ignore this step.
 
 ##### Download ROS Bridge <a id="download-ros-bridge"></a>