Unified spelling of "real-time" (vs. "real time")

(This spelling is consistent with the one provided by Merriam Webster for use an an adjective)

Cargo.toml

@@ -5,7 +5,7 @@ authors = [
   "Per Lindgren <per.lindgren@ltu.se>",
 ]
 categories = ["concurrency", "embedded", "no-std"]
-description = "Real-Time Interrupt-driven Concurrency (RTIC): a concurrency framework for building real time systems"
+description = "Real-Time Interrupt-driven Concurrency (RTIC): a concurrency framework for building real-time systems"
 documentation = "https://rtic.rs/"
 edition = "2018"
 keywords = ["arm", "cortex-m"]

README.md

@@ -1,6 +1,6 @@
 # Real-Time Interrupt-driven Concurrency
 
-A concurrency framework for building real time systems.
+A concurrency framework for building real-time systems.
 
 Formerly known as Real-Time For the Masses.
 

book/en/src/by-example/tasks.md

@@ -78,7 +78,7 @@ message. In most scenarios spawning errors are handled in one of two ways:
   platform can deal with peak payload or if the processor needs to be replaced
   with a faster one.
 
-- Ignoring the result. In soft real time and non real time applications it may
+- Ignoring the result. In soft real-time and non real-time applications it may
   be OK to occasionally lose data or fail to respond to some events during event
   bursts. In those scenarios silently letting a `spawn` call fail may be
   acceptable.

book/en/src/preface.md

@@ -1,6 +1,6 @@
 <h1 align="center">Real-Time Interrupt-driven Concurrency</h1>
 
-<p align="center">A concurrency framework for building real time systems</p>
+<p align="center">A concurrency framework for building real-time systems</p>
 
 # Preface