Fix typos in links to subcrates
@@ -389,8 +389,8 @@ To build and run the latest version of the OrbTk manual check: [Manual](https://
* [api](https://github.com/redox-os/orbtk/tree/develop/crates/api): base api elements of OrbTk e.g. widget and application parts
* [proc_macros](https://github.com/redox-os/orbtk/tree/develop/crates/proc_macros): procedural helper macros
* [render](https://github.com/redox-os/orbtk/tree/develop/crates/render): cross platform 2D/3D render library
-* [shell](https://github.com/redox-os/orbtk/tree/develop/crates/api): cross platform window and event handling
-* [theming](https://github.com/redox-os/orbtk/tree/develop/crates/theme): provide mechanism to style OrbTk UI's in rust and ron (replaces css-engine)
+* [shell](https://github.com/redox-os/orbtk/tree/develop/crates/shell): cross platform window and event handling
+* [theming](https://github.com/redox-os/orbtk/tree/develop/crates/theming): provide mechanism to style OrbTk UI's in rust and ron (replaces css-engine)
* [tree](https://github.com/redox-os/orbtk/tree/develop/crates/tree): tree structure based on DCES
* [utils](https://github.com/redox-os/orbtk/tree/develop/crates/utils): helper structs and traits
* [widgets](https://github.com/redox-os/orbtk/tree/develop/crates/widgets): base widget library
