pfetch: add page (#6414)

pages/common/pfetch.md

@@ -0,0 +1,20 @@
+# pfetch
+
+> Display system information.
+> More information: <https://github.com/dylanaraps/pfetch>.
+
+- Display only the ASCII art and color palette fields:
+
+`PF_INFO="{{ascii palette}}" pfetch`
+
+- Display all possible fields:
+
+`PF_INFO="{{ascii title os host kernel uptime pkgs memory shell editor wm de palette}}" pfetch`
+
+- Display a different username and hostname:
+
+`USER="{{user}}" HOSTNAME="{{hostname}}" pfetch`
+
+- Display without colors:
+
+`PF_COLOR={{0}} pfetch`