content: add a missing space in the ismmkeynote article

Change-Id: I3dbab5ca96651275dd8cd24eb54b97a59dbb20ee
Reviewed-on: https://go-review.googlesource.com/124415
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
diff --git a/content/ismmkeynote.article b/content/ismmkeynote.article
index 6fa4a97..f1cd74d 100644
--- a/content/ismmkeynote.article
+++ b/content/ismmkeynote.article
@@ -64,7 +64,7 @@
 
 Go comes with two knobs to control the GC. The first one is GCPercent. Basically this is a knob that adjusts how much CPU you want to use and how much memory you want to use. The default is 100 which means that half the heap is dedicated to live memory and half the heap is dedicated to allocation. You can modify this in either direction.
 
-MaxHeap, which is not yet released but is being used and evaluated internally,lets the programmer set what the maximum heap size should be. Out of memory, OOMs, are tough on Go; temporary spikes in memory usage should be handled by increasing CPU costs, not by aborting. Basically if the GC sees memory pressure it informs the application that it should shed load. Once things are back to normal the GC informs the application that it can go back to its regular load. MaxHeap also provides a lot more flexibility in scheduling. Instead of always being paranoid about how much memory is available the runtime can size the heap up to the MaxHeap.
+MaxHeap, which is not yet released but is being used and evaluated internally, lets the programmer set what the maximum heap size should be. Out of memory, OOMs, are tough on Go; temporary spikes in memory usage should be handled by increasing CPU costs, not by aborting. Basically if the GC sees memory pressure it informs the application that it should shed load. Once things are back to normal the GC informs the application that it can go back to its regular load. MaxHeap also provides a lot more flexibility in scheduling. Instead of always being paranoid about how much memory is available the runtime can size the heap up to the MaxHeap.
 
 This wraps up our discussion on the pieces of Go that are important to the garbage collector.