- add first draft of fromAssembly

FromAssembly.md

@@ -1 +1,29 @@
-The `FromAssembly` class is a static helper class that supplies methods to find the wanted `Assembly` for an `IAssemblyInstaller`. Is acts similar to a factory in the way that its methods return a new instance of an `IAssemblyInstaller` with the assembly that they provide.
+The `FromAssembly` class is a static helper class that supplies methods to find the wanted `Assembly` for an `IAssemblyInstaller`.  
+It acts similar to a factory in the way that its methods return a new instance of an `IAssemblyInstaller` with the assembly that they provide.
+
+There are two different methods that create `IAssemblyInstaller`s:
+
+## `This()`
+
+The `This()` method creates an `IAssemblyInstaller` that installs from the `Assembly` that calls the method.  
+This is done by using the `Assembly.GetCallingAssembly()` method:
+
+```c#
+public static IAssemblyInstaller This()
+{
+    Assembly assembly = Assembly.GetCallingAssembly();
+    return new AssemblyInstaller(assembly);
+}
+```
+
+## `Instance()`
+
+The `Instance()` method creates an `IAssemblyInstaller` that installs from the `Assembly` instance that is given to the method.  
+This is done by straightforwardly creating an `IAssemblyInstaller`:
+
+```c#
+public static IAssemblyInstaller Instance(Assembly assembly)
+{
+    return new AssemblyInstaller(assembly);
+}
+```