Fix documentation nits in pgm-MigrateAccountPatchReviewDb.txt

Change-Id: Iedfc8f06c4c9b9de183917f523d6c0ff946719c7
diff --git a/Documentation/pgm-MigrateAccountPatchReviewDb.txt b/Documentation/pgm-MigrateAccountPatchReviewDb.txt
index e353ffd..a2cb53e 100644
--- a/Documentation/pgm-MigrateAccountPatchReviewDb.txt
+++ b/Documentation/pgm-MigrateAccountPatchReviewDb.txt
@@ -16,7 +16,7 @@
 Migrates AccountPatchReviewDb from one database backend to another. The
 AccountPatchReviewDb is a database used to store the user file reviewed flags.
 
-This task is only intended to be run if the configuration parameter
+This command is only intended to be run if the configuration parameter
 link:config-gerrit.html#accountPatchReviewDb.url[accountPatchReviewDb.url]
 is set or changed.
 
@@ -24,7 +24,7 @@
 
 * Stop Gerrit
 * Configure new value for link:config-gerrit.html#accountPatchReviewDb.url[accountPatchReviewDb.url]
-* Migrate data using this task
+* Migrate data using this command
 * Start Gerrit
 
 == OPTIONS