Update README.md

Grammatical fixes.

middleware/secondary/README.md

@@ -9,7 +9,7 @@ secondary [zones...]
 ~~~
 
 * `zones` zones it should be authoritative for. If empty, the zones from the configuration block
-    are used. Not that with an remote address to *get* the zone the above is not that useful.
+    are used. Note that without a remote address to *get* the zone from, the above is not that useful.
 
 A working syntax would be:
 
@@ -20,9 +20,9 @@ secondary [zones...] {
 }
 ~~~
 
-* `transfer from` tell from which address to fetch the zone. It can be specified multiple time,
-    if one does not work another will be tried.
-* `transfer to` can be enabled to allow this secondary zone to be transfered again.
+* `transfer from` specifies from which address to fetch the zone. It can be specified multiple times;
+    if one does not work, another will be tried.
+* `transfer to` can be enabled to allow this secondary zone to be transferred again.
 
 ## Examples