Essentials updated

Author: jcarolinares

content/hardware/04.pro/boards/portenta-x8/essentials.md

@@ -1,6 +1,6 @@
 <EssentialsColumn title="First Steps">
-    <EssentialElement title="Quickstart Guide" type="getting-started" link="http://docs.arduino.cc/tutorials/portenta-x8/out-of-the-box">
-        A quick guide to installing your board with the Arduino IDE.
+    <EssentialElement title="User Manual" type="getting-started" link="http://docs.arduino.cc/tutorials/portenta-x8/user-manual">
+        A full guide to the basics of the Portenta X8
     </EssentialElement>
     <EssentialElement link="https://docs.arduino.cc/tutorials/portenta-x8/x8-fundamentals" title="Fundamentals of Portenta X8" type="tutorial">
         This article contains information about the fundamental concepts of the Portenta X8.
@@ -12,7 +12,7 @@
 
 <EssentialsColumn title="Suggested Repositories">
     <EssentialElement link="https://github.com/arduino/portenta-containers" title="Portenta X8 containers" type="article">
-        Some containers examples for Portenta X8, this containers are accessible through your Foundries.io factory.
+        Some containers examples for Portenta X8, these containers are accessible through your Foundries.io factory.
     </EssentialElement>
     <EssentialElement link="https://github.com/arduino/lmp-manifest/releases" title="OS Images" type="tutorial">
         Releases section from the lmp-manifest repo, lists all the builds also available on the Foundries.io factory.