Add release notes

notes/0.1.0-M1.markdown

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+[coursier](https://github.com/alexarchambault/coursier/) is a pure Scala
+substitute for [Aether](http://www.eclipse.org/aether/). Given a set
+of dependencies, and Maven repositories, it can list all their transitive
+dependencies, solving possible version conflicts.
+
+This is the first release of coursier.
+
+Test it in your browser with its [Scala JS demo](https://alexarchambault.github.io/coursier/#demo).
+
+### Overview
+
+Use it like
+```scala
+val repositories = Seq(
+  Repository.ivy2Local,
+  Repository.mavenCentral
+)
+
+val dependencies = Set(
+  Dependency(Module("com.github.alexarchambault", "argonaut-shapeless_6.1_2.11"), "0.2.0"),
+  Dependency(Module("com.github.alexarchambault", "shapeless-refined-std_2.11"), "0.1.1")
+)
+
+val resolution =
+  Resolution(dependencies) // Initial resolution state
+    .process               // Resolution process (scalaz-stream like)
+    .run(repositories)     // Run the resolution with these repositories
+    .run                   // Run the resulting Task[Resolution]
+
+val allDependencies = resolution.minDependencies // Set[Dependency]
+val allArtifacts = resolution.artifacts // Seq[Artifact]
+
+val errors = resolution.errors // Metadata errors (not found, malformed, ...)
+val conflicts = resolution.conflicts // Version conflicts
+
+// URLs of the artifacts (JARs)
+val allArtifactsUrls = allArtifacts.map(_.url) // Seq[String]
+```
+
+Both metadata and artifacts can be cached. Resolution per se only fetches
+metadata, and gives you back artifact URLs.

notes/about.markdown

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+[coursier](http://github.com/alexarchambault/coursier) is a pure Scala library to resolve and fetch Maven dependencies and artifacts.