Added release notes for release 0.1.0

- Created new folder called 'releases' in docs to record release
notes
- Added v0_1_0.md release notes for v0.1.0
- Added link to release notes in README.md

Signed-off-by: Nisha K <nishak@vmware.com>

Author: Nisha K

README.md

@@ -59,6 +59,9 @@ $ python tests/<test file>.py
 
 We try to keep the [project roadmap](./docs/project-roadmap.md) as up to date as possible. We are currently working on Release 0.1.0.
 
+## Releases
+* [v0.1.0](docs/releases/v0_1_0.md)
+
 ## Documentation<a name="documentation"/>
 Architecture, function blocks, code descriptions and the project roadmap are located in the docs folder. We also welcome contributions to the documentation. See the [contributing guide](/CONTRIBUTING.md) to find out how to submit changes.
 

docs/releases/v0_1_0.md

@@ -0,0 +1,19 @@
+# Release v0.1.0
+
+## Summary
+This is Tern's first release.
+
+## Notes
+* Tern now uses Docker CLI only when working with Docker images. At this time, only images built by Docker are supported.
+* Tern uses overlayfs to step through container image filesystem layers. OverlayFS is supported in kernel version 4.0 or higher.
+* Tern requires root privileges to run because it needs to mount procfs in order to run commands within a chroot environment and call the Docker CLI. It is enough if you have configured sudo; Tern will ask for your password before running any priviledged commands.
+* You can give Tern a Dockerfile to build and inspect the resulting image. This is helpful either in a development environment or during build and release. This gives you some understanding on how your Dockerfile affects the packages installed in your container during a build. 
+```
+$ ./tern report -d <path to Dockerfile>
+```
+* You can give Tern a local Docker image that you have pulled from a registry like Dockerhub. Tern will try to give as much information as it can obtain from the container image.
+```
+$ ./tern report -i <Docker image:tag>
+```
+* The Dockerfile and shell parser are still rudimentary. Please file an issue if it does not work for your Dockerfile or image.
+* The Command Library is still small. If you would like to contribute to it, please read our [contributing guidelines](CONTRIBUTING.md) and [this document](docs/adding-to-command-library.md).