Minor fixes.

README.md

@@ -110,7 +110,7 @@ Now when ClangSharp encounters tagRECT it will automatically change the name it
 
 ClangSharp was designed to create C#-compilable code from Win32 headers. Because its goal is to create C#-compilable code while also preserving pointers, it can't always express things in the way we would like for metadata which is meant to be language-agnostic. For example, the CLR will not allow managed types such as "interface" or "delegate" to be on an unsafe struct (a struct that gets pointed to or includes pointers). This means ClangSharp emits COM objects as structs instead of interfaces, so that a COM object can exist on an unsafe struct.
 
-The winmd emitter takes the C#-compilable source created by ClangSharp and emits it into a .winmd. A .winmd can define an interface, have struct use it as a field type, and have a function parameter point at the struct. However, the CLR will not be able to load it because it'ss invalid to the CLR.
+The winmd emitter takes the C#-compilable source created by ClangSharp and emits it into a .winmd. A .winmd can define an interface, have a struct use it as a field type, and have a function parameter point at the struct. However, the CLR will not be able to load it because it's invalid to the CLR.
 
 The emitter also looks at SAL attributes that ClangSharp outputs for parameters and adds metadata attributes for const, in/out, COM out pointers, etc. It will also mark fields and parameters via attributes as null-terminated strings while preserving the original pointer type. It is up to consumers of the fields and parameters to interpret the metadata and turn them into language-appropriate types such as a string.