Fix some 404s (docker#4281)

Misty Stanley-Jones · web-flow · commit fe90c1138219 · 2017-08-18T14:14:42.000-07:00
diff --git a/engine/installation/index.md b/engine/installation/index.md
@@ -10,6 +10,8 @@ redirect_from:
 - /engine/installation/linux/archlinux/
 - /engine/installation/linux/cruxlinux/
 - /engine/installation/linux/gentoolinux/
+- /engine/installation/linux/docker-ce/
+- /engine/installation/linux/docker-ee/
 title: Install Docker
 ---
 
diff --git a/engine/installation/windows/docker-ee.md b/engine/installation/windows/docker-ee.md
@@ -18,8 +18,8 @@ versions here](https://docs.docker.com/release-notes/) or subscribe to the
 
 ## Install Docker EE
 
-Docker EE for Windows requires Windows Server 2016. See [What to know before
-you install](/docker-ee-for-windows/#what-to-know-before-you-install) for a
+Docker EE for Windows requires Windows Server 2016. See
+[What to know before you install](#what-to-know-before-you-install) for a
 full list of prerequisites. To install Docker Community Edition (*Docker CE*)
 on a Windows 10 machine, see [Install Docker for Windows](/docker-for-windows/install.md).
 
diff --git a/engine/security/index.md b/engine/security/index.md
@@ -2,6 +2,8 @@
 description: Sec
 keywords: seccomp, security, docker, documentation
 title: Secure Engine
+redirect_from:
+- /articles/security/
 ---
 
 This section discusses the security features you can configure and use within your Docker Engine installation.
diff --git a/glossary.md b/glossary.md
@@ -6,6 +6,7 @@ notoc: true
 noratings: true
 redirect_from:
 - /engine/reference/glossary/
+- /reference/glossary/
 ---
 <!--
 To edit/add/remove glossary entries, visit the YAML file at:
diff --git a/opensource/index.md b/opensource/index.md
@@ -2,6 +2,9 @@
 description: Overview of contributing
 keywords: open, source, contributing, overview
 title: Open Source at Docker
+redirect_from:
+- /contributing/
+- /contributing/contributing/
 ---
 
 Contributing to the Docker project or to any open source project can be a
