macos_dependencies_install.md

@@ -9,7 +9,7 @@ To install MacPort: follow the instructions provided [here](https://www.macports
 
 To compile:
 ```
-port install gcc10 python38 py38-numpy swig-python cmake +gui
+sudo port install gcc10 python38 py38-numpy swig-python cmake +gui
 ```
 Then you need to set the compiler and python as the default on your system:
 ```
@@ -32,7 +32,7 @@ sudo port install py38-scipy
 
 To visualize:
 ```
-port install vtk +python38
+sudo port install vtk +python38
 ```
 and then download Paraview software from [here](http://www.paraview.org/download)