Merge pull request #55 from rust-embedded/crate-badges

add crate badges

Author: jonathanpallant

cortex-a-rt/README.md

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+[![crates.io](https://img.shields.io/crates/v/cortex-a-rt)](https://crates.io/crates/cortex-a-rt)
+[![docs.rs](https://img.shields.io/docsrs/cortex-a-rt)](https://docs.rs/cortex-a-rt)
+
 # Run-time support for Arm Cortex-A (AArch32)
 
 This library implements a simple Arm vector table, suitable for getting into a

cortex-ar/README.md

@@ -1,3 +1,6 @@
+[![crates.io](https://img.shields.io/crates/v/cortex-ar)](https://crates.io/crates/cortex-ar)
+[![docs.rs](https://img.shields.io/docsrs/cortex-ar)](https://docs.rs/cortex-ar)
+
 # Support for Arm Cortex-R (AArch32) and Arm Cortex-A (AArch32)
 
 This crate provides access to CPU registers and common peripherals for:

cortex-r-rt/README.md

@@ -1,3 +1,6 @@
+[![crates.io](https://img.shields.io/crates/v/cortex-r-rt)](https://crates.io/crates/cortex-r-rt)
+[![docs.rs](https://img.shields.io/docsrs/cortex-r-rt)](https://docs.rs/cortex-r-rt)
+
 # Run-time support for Arm Cortex-R (AArch32)
 
 This library implements a simple Arm vector table, suitable for getting into a