Add release notes stub for 1.0.0-beta2 (#195)

Adds a stub for the release notes for ecctl 1.0.0-beta2. Content will
be added in a different PR

Author: Nik Richers

docs/ecctl-release-notes.asciidoc

@@ -3,8 +3,62 @@
 
 This section summarizes the changes in each {n} release.
 
+* <<{p}-release-notes-v1.0.0-beta2>>
 * <<{p}-release-notes-v1.0.0-beta1>>
 
+[id="{p}-release-notes-v1.0.0-beta2"]
+=== Elastic Cloud Control (ecctl) v1.0.0-beta2
+++++
+<titleabbrev>v1.0.0-beta2</titleabbrev>
+++++
+
+<<{p}-release-notes-v1.0.0-beta2-whats-new,What's new>> | <<{p}-release-notes-v1.0.0-beta2-bug-fixes,Bug fixes>> | <<{p}-release-notes-v1.0.0-beta2-breaking-changes,Breaking changes>> | <<{p}-release-notes-v1.0.0-beta2-changelog,Changelog>>
+
+Welcome to the v1.0.0-beta2 release of {n}! This version brings new features, some breaking changes, and bug fixes. 
+
+Download the release binaries:
+
+[%hardbreaks]
+https://download.elastic.co/downloads/ecctl/1.0.0-beta2/ecctl_1.0.0-beta2_darwin_amd64.tar.gz[ecctl_1.0.0-beta2_darwin_amd64.tar.gz]
+https://download.elastic.co/downloads/ecctl/1.0.0-beta2/ecctl_1.0.0-beta2_linux_32-bit.deb[ecctl_1.0.0-beta2_linux_32-bit.deb]
+https://download.elastic.co/downloads/ecctl/1.0.0-beta2/ecctl_1.0.0-beta2_linux_32-bit.rpm[ecctl_1.0.0-beta2_linux_32-bit.rpm]
+https://download.elastic.co/downloads/ecctl/1.0.0-beta2/ecctl_1.0.0-beta2_linux_386.tar.g[ecctl_1.0.0-beta2_linux_386.tar.g]
+https://download.elastic.co/downloads/ecctl/1.0.0-beta2/ecctl_1.0.0-beta2_linux_64-bit.deb[ecctl_1.0.0-beta2_linux_64-bit.deb]
+https://download.elastic.co/downloads/ecctl/1.0.0-beta2/ecctl_1.0.0-beta2_linux_64-bit.rpm[ecctl_1.0.0-beta2_linux_64-bit.rpm]
+https://download.elastic.co/downloads/ecctl/1.0.0-beta2/ecctl_1.0.0-beta2_linux_amd64.tar.gz[ecctl_1.0.0-beta2_linux_amd64.tar.gz]
+
+[float]
+[id="{p}-release-notes-v1.0.0-beta2-whats-new"]
+==== What's new
+
+* *Feature X.* Describe feature X, explain the benefits briefly, and then link to the docs if there's more info.
+* *Feature Y.* ... 
+* *Feature Z.* ...
+
+[float]
+[id="{p}-release-notes-v1.0.0-beta2-bug-fixes"]
+==== Bug fixes
+
+This version includes fixes for the following bugs and known issues:
+
+* Bug A. Describe the symptoms of the bug and how things now work after the bug fix.
+
+[float]
+[id="{p}-release-notes-v1.0.0-beta2-breaking-changes"]
+==== Breaking changes
+
+* *Removed X command*. We removed feature X, because it is deprecated or no longer supported. If applicable, add what feature replaces it and add a link. 
+
+[float]
+[id="{p}-release-notes-v1.0.0-beta2-changelog"]
+==== Changelog
+
+[%hardbreaks]
+TBD
+
+_Release date: February 28, 2020_
+
+
 [id="{p}-release-notes-v1.0.0-beta1"]
 === Elastic Cloud Control (ecctl) v1.0.0-beta1
 ++++