Reword readme

Author: tormol

README.md

@@ -1,9 +1,8 @@
 This packages includes the `Ascii` type and related functionality
-that were removed from the Rust standard library on the 2014-12
+that was removed from the Rust standard library by the 2014-12
 [reform of the `std::ascii` module](https://github.com/rust-lang/rfcs/pull/486).
 
-There is a [documentation](https://tomprogrammer.github.io/rust-ascii/ascii/index.html)
-online.
-
-`Ascii` is a wrapper for `u8` force the value to be within the ASCII range (0x00 to 0x7F).
+`Ascii` is a wrapper for `u8` that forces the value to be within the ASCII range (0x00 to 0x7F).
 `AsciiString` and `AsciiStr` are naturally strings of text entirely within the ASCII range.
+
+[Documentation](https://tomprogrammer.github.io/rust-ascii/ascii/index.html)