Documentation Update - ran a spellchecker

- Caught a couple of typos in the man pages.

doc/man1/task.1

@@ -111,7 +111,7 @@ Shows a monthly calendar with due tasks marked.
 
 .TP
 .B active
-Shows all tasks that are started but not comleted.
+Shows all tasks that are started but not completed.
 
 .TP
 .B overdue
@@ -220,7 +220,7 @@ Specify alternate configuration file.
 .SH SPECIFYING DATES AND FREQUENCIES
 
 .SS DATES
-Task reads dates from the commandline and displays dates in the
+Task reads dates from the command line and displays dates in the
 reports.  The expected and desired date format is determined by the
 configuration variable
 .I dateformat
@@ -252,7 +252,7 @@ task ... due:eom
 task ... due:eoy
 
 .TP
-Next occuring weekday
+Next occurring weekday
 task ... due:fri
 .RE
 
@@ -272,15 +272,15 @@ Mondays, Tuesdays, Wednesdays, Thursdays, Fridays and skipping weekend days.
 
 .TP
 weekly, 1w, 2w, ...
-Eery week or a number of weeks.
+Every week or a number of weeks.
 
 .TP
 biweekly, fortnight
 Every two weeks.
 
 .TP
-quaterly, 1q, 2q, ...
-Every three months, a quarter, or a number of quaters.
+quarterly, 1q, 2q, ...
+Every three months, a quarter, or a number of quarters.
 
 .TP
 semiannual