system/docker: Misc README and slack-desc changes.

Signed-off-by: Audrius Kažukauskas <audrius@neutrino.lt>

system/docker/README

@@ -9,7 +9,8 @@ To use docker as a limited user, add your user to the 'docker' group:
   # groupadd -r -g 281 docker
   # usermod -a -G docker <your_username>
 
-This will require logging out and back in and also restart docker daemon.
+This will require logging out and back in and also restarting docker
+daemon.
 
 To have the docker daemon start and stop with your host,
 add to /etc/rc.d/rc.local:
@@ -24,11 +25,11 @@ and to /etc/rc.d/rc.local_shutdown (creating it if needed):
     /etc/rc.d/rc.docker stop
   fi
 
-If you are interested in enabling cgroup memory resource controll over
+If you are interested in enabling cgroup memory resource control over
 swap as well, then append "swapaccount=1" to your kernel's parameters.
 This is often in /etc/lilo.conf, on the "append" variable.
 
 NOTE: google-go-lang is only needed at compile time - not needed for
 runtime.
 
-Docker doesn't support x86, only x86_64
+Docker doesn't support x86, only x86_64.

system/docker/slack-desc

@@ -6,7 +6,7 @@
 # customary to leave one space after the ':' except on otherwise blank lines.
 
       |-----handy-ruler------------------------------------------------------|
-docker: docker (manager for applications in linux containers)
+docker: docker (manager for applications in Linux containers)
 docker:
 docker: Docker is an open-source project to easily create lightweight,
 docker: portable, self-sufficient containers from any application.  The same
@@ -14,6 +14,6 @@ docker: container that a developer builds and tests on a laptop can run at
 docker: scale, in production, on VMs, bare metal, OpenStack clusters, public
 docker: clouds and more.
 docker:
-docker: Homepage: https://dockerproject.org/
+docker: Homepage: https://www.docker.com/
 docker:
 docker: