README typo correction (dotnet#1220)

README.md

@@ -10,7 +10,7 @@
 
 [.NET Core](https://docs.microsoft.com/dotnet/core/) is a general purpose development platform maintained by Microsoft and the .NET community on [GitHub](https://github.com/dotnet/core). It is cross-platform, supporting Windows, macOS and Linux, and can be used in device, cloud, and embedded/IoT scenarios.
 
-.NET has several capabilities that make development easier, including a utomatic memory management, (runtime) generic types, reflection, asynchrony, concurrency, and native interop. Millions of developers take advantage of these capabilities to efficiently build high-quality applications.
+.NET has several capabilities that make development easier, including automatic memory management, (runtime) generic types, reflection, asynchrony, concurrency, and native interop. Millions of developers take advantage of these capabilities to efficiently build high-quality applications.
 
 You can use C# to write .NET Core apps. C# is simple, powerful, type-safe, and object-oriented while retaining the expressiveness and elegance of C-style languages. Anyone familiar with C and similar languages will find it straightforward to write in C#.