Fixed readme URL typo. Updated root lib.rs module doc comment

Author: TheDan64

README.md

@@ -41,7 +41,7 @@ extern crate inkwell;
 
 ## Documentation
 
-Documenation is automatically deployed [here](https://thedan64.github.io/inkwel/) based on master. These docs are not yet 100% complete and only show the latest supported LLVM version due to a rustdoc issue. See [#2](https://github.com/TheDan64/inkwell/issues/2) for more info.
+Documenation is automatically deployed [here](https://thedan64.github.io/inkwell/) based on master. These docs are not yet 100% complete and only show the latest supported LLVM version due to a rustdoc issue. See [#2](https://github.com/TheDan64/inkwell/issues/2) for more info.
 
 ## Examples
 

src/lib.rs

@@ -1,3 +1,9 @@
+//! Inkwell documentation is a work in progress.
+//!
+//! If you have any LLVM knowledge that could be used to improve these docs, we would grealy appreciate you opening an issue and/or a pull request on our [GitHub page](https://github.com/TheDan64/inkwell).
+//!
+//! Due to a rustdoc issue, this documentation represents only the latest supported LLVM version. We hope that this issue will be resolved in the future so multiple versions can be documented side by side.
+
 #![deny(missing_debug_implementations)]
 extern crate either;
 #[macro_use]