docs: Regen CLI docs

docs/content/en/commands/hugo_server.md

@@ -1,5 +1,5 @@
 ---
-date: 2020-03-03
+date: 2020-09-07
 title: "hugo server"
 slug: hugo_server
 url: /commands/hugo_server/
@@ -61,6 +61,7 @@ hugo server [flags]
       --noTimes                don't sync modification time of files
       --path-warnings          print warnings on duplicate target paths etc.
   -p, --port int               port on which the server will listen (default 1313)
+      --print-mem              print memory usage to screen at intervals
       --renderToDisk           render to Destination path (default is render to memory & serve from there)
       --templateMetrics        display metrics about template executions
       --templateMetricsHints   calculate some improvement hints when combined with --templateMetrics
@@ -90,4 +91,4 @@ hugo server [flags]
 
 * [hugo](/commands/hugo/)	 - hugo builds your site
 
-###### Auto generated by spf13/cobra on 3-Mar-2020
+###### Auto generated by spf13/cobra on 7-Sep-2020