Update comsol-multiphysics.md

docs.it4i/software/cae/comsol/comsol-multiphysics.md

@@ -52,13 +52,16 @@ $ comsol -3drend sw
 
 !!! info
     If you receive errors at startup, for example, of the following type:
+    
     ```console
 FL3D: error at line 814 in file fl3dglcontext_x11common.c:
    PBuffers are not supported by the system.
 FL3D: error at line 235 in file fl3dglcontext_x11common.c:
    assert: x11Handle
    ```
+
    you need to run COMSOL with additional parameters:
+
    ```console
 $ comsol -3drend sw
    ```