Add memory profile service to the Profiler integration

source/_integrations/profiler.markdown

@@ -33,3 +33,20 @@ Additionally, the profiler will generate a `callgrind.out` file that can be view
 
 [kcachegrind](https://kcachegrind.github.io/) or qcachegrind
 
+### Service `profiler.memory`
+
+Start the memory profiler for the specified number of seconds.
+
+| Service data attribute | Optional | Description |
+| ---------------------- | -------- | ----------- |
+| `seconds` | yes | The number of seconds to run the profile. Defaults to 60.0
+
+When the memory profile is complete, Profiler will generate a `.hpy` file in your configuration directory. The exact path to these files will appear in a persistent notification so they can be easily located and copied to your desktop.
+
+The `hpy` file can be viewed with any text editor. A visual representation can be viewed using the [Heapy Profile Browser](http://guppy-pe.sourceforge.net/ProfileBrowser.html) which is a part of the guppy3 package and can be launched via the below script:
+
+```python
+#! /usr/bin/python3
+from guppy import hpy
+hpy().pb()
+```