Update README with info about XML file, fixes #36

Author: kugelrund

README.md

@@ -1,6 +1,6 @@
 LiveSplit.MemoryGraph
 =====================
-Shows a value of a game's memory in a graph. Probably buggy as hell atm.
+Shows a value of a game's memory in a graph.
 
 ![preview.png](/images/preview.png)
 
@@ -10,9 +10,12 @@ Download "Components/LiveSplit.MemoryGraph.dll" and place it into the subdirecto
 
 Usage
 -----
-You need to tell the plugin, where in the memory it can find the value that you want to display. You can find some known memory addresses in the [Wiki](https://github.com/kugelrund/LiveSplit.MemoryGraph/wiki) or by downloading an XML file inside of the component.
+You need to tell the plugin, where in the game's memory it can find the value that you want to display.
+For many games, some kind people have already looked for values worth displaying and added them to our [XML file](https://github.com/kugelrund/LiveSplit.MemoryGraph/blob/master/XML/LiveSplit.MemoryGraph.Games.xml).
+The settings of the component can be used to download that XML file, which then allows to select a game and one of its known values via the dropdown menu.
 
-If the address for the value that you want to display is not there, you can find it out yourself using for example the free program Cheat Engine.
+If the address for the value that you want to display is not there yes, you can try to find it by yourself using for example the free program Cheat Engine.
+The process is very similar to that when writing your own [AutoSplitter](https://github.com/LiveSplit/LiveSplit.AutoSplitters/blob/master/README.md) for LiveSplit, so it might be worth to check out some of that documentation. If you were successful in finding your value, consider adding it to our [XML file](https://github.com/kugelrund/LiveSplit.MemoryGraph/blob/master/XML/LiveSplit.MemoryGraph.Games.xml) via a pull request, so that other people can use it in the future.
 
 Credits
 -----