Fixed a few typos and formatting issues in typed-libraries documentation.

docs/typed-libraries.md

@@ -54,19 +54,23 @@ A “py.typed” library is said to be “type complete” if all of the symbols
 A “known type” is defined as follows:
 
 Classes:
-    - All class variables, instance variables, and methods that are “visible” (not overriden) are annotated and refer to known types
-    - If a class is a subclass of a generic class, type arguments are provided for each generic type parameter, and these type arguments are known types
+
+    * All class variables, instance variables, and methods that are “visible” (not overridden) are annotated and refer to known types
+    * If a class is a subclass of a generic class, type arguments are provided for each generic type parameter, and these type arguments are known types
 
 Functions and Methods:
-    - All input parameters have type annotations that refer to known types
-    - The return parameter is annotated and refers to a known type
-    - The result of applying one or more decorators results in a known type
+
+    * All input parameters have type annotations that refer to known types
+    * The return parameter is annotated and refers to a known type
+    * The result of applying one or more decorators results in a known type
 
 Type Aliases:
-    - All of the types referenced by the type alias are known
+
+    * All of the types referenced by the type alias are known
 
 Variables:
-    - All variables have type annotations that refer to known types
+
+    * All variables have type annotations that refer to known types
 
 Type annotations can be omitted in a few specific cases where the type is obvious from the context:
 
@@ -107,7 +111,7 @@ def func(a: Optional[int], b: Dict[str, float] = {}) -> None:
 def func(a, b):
     pass
 
-# Function with partially unknown function (because of missing
+# Function with partially unknown type (because of missing
 # type args on Dict)
 def func(a: int, b: Dict) -> None:
     pass
@@ -233,7 +237,7 @@ _F = TypeVar("_F", bound=Callable[..., Any])
 
 def simple_decorator(_func: _F) -> _F:
 	"""
-     Simple decorators are invoked without parens like this:
+     Simple decorators are invoked without parentheses like this:
        @simple_decorator
        def my_function(): ...
      """