MYRIAD-299 Added CHANGELOG file (#132)

* Fixed Typo

* MYRIAD-299 Added CHANGELOG file

CHANGELOG

@@ -0,0 +1,36 @@
+Release Notes - Myriad - Version 0.4.0 (WIP)
+-------------------------------------------
+This release contains the following highlights:
+
+  * [MYRIAD-180] Build should not pollute sources
+  * [MYRIAD-185] Incubator Myriad 0.1.0 Build Takes Long
+  * [MYRIAD-187] Update npm dependencies.
+  * [MYRIAD-273] Upgrade gradle version
+  * [MYRIAD-275] Upgrade front dependencies
+  * [MYRIAD-294] Add license footers to a few markdown readmes that currently don't have it
+  * [MYRIAD-296] Build broken by Gulp Error
+  * [MYRIAD-298] Upgrade Mesos API to 1.8.x
+  * [MYRIAD-300] Update documentation and readmes with latest version
+  * [MYRIAD-301] Make links relative in index.html
+  * [MYRIAD-302] Renaming artifacts with correct version
+
+---
+<sub>
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+<sub>
+  http://www.apache.org/licenses/LICENSE-2.0
+
+<sub>
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.

docs/how-it-works.md

@@ -20,7 +20,7 @@ The Mesos Slave and YARN’s Node Manager are processes that run on the host OS.
 /sys/fs/cgroup/cpu/mesos/node-manager-task-id/container-1
 ```
 
-The following diagram showsa node running YARN NodeManager as a Mesos Slave task:
+The following diagram shows a node running YARN NodeManager as a Mesos Slave task:
 
 ![Node](images/node.png)