Node.js install

doc/manual/source/install.rst

@@ -171,29 +171,20 @@ Node.js
 
 Node.js is required by different parts of the stack. The more significant are the Maps and SQL APIs. It's also used to install and execute some dependencies of Builder.
 
-
-* Add the PPA
-
-  .. code-block:: bash
-
-    sudo add-apt-repository ppa:cartodb/nodejs && sudo apt-get update
-
 * Install Node.js
 
   .. code-block:: bash
 
-    sudo apt-get install nodejs
+    curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
+    sudo apt-get install -y nodejs
 
-  Note this should install both Node.js 6.9.2 and npm 3.10.9. You can verify the installation went as expected with:
+  Note this should install both Node.js 10.x and npm 6.x. You can verify the installation went as expected with:
 
   .. code-block:: bash
 
-    nodejs -v
+    node -v
     npm -v
 
-.. warning::
-      CARTO uses Node.js v6.9.2 and npm 3.10.9. You must use these precise versions to avoid problems.
-
 We will also install some development libraries that will be necessary to build some Node.js modules:
 
   .. code-block:: bash