Educational pricing change

solves https://dev.gitlab.org/gitlab/organization/issues/17.

Includes:

• change to subscription page text
• change to subscription terms
• blog post

source/_includes/subscription_terms.html

@@ -33,7 +33,7 @@ By purchasing a subscription you agree to be bound by the terms of this document
<li> <strong>Basic subscription</strong>
<p>
The basic subscription allows the client to use GitLab Enterprise Edition with as many users as the subscription is for.
-  A user is defined as an individual authorized by the client to use an on-premises GitLab server.
+  A user is defined as an individual authorized by the client to use an on-premises GitLab server. Students of educational institutions are excluded from the user count.
This means that a person that has access to two or on-premises servers counts as a single user.
Robots, bots and other automated accounts not linked to a person do not count towards the user count.
Guests, reporters, managers and people that have no access to the source code do count towards the user count.
@@ -46,7 +46,7 @@ By purchasing a subscription you agree to be bound by the terms of this document
The standard subscription entitles the clients to everything the basic subscription offers and the following services.
GitLab B.V. aims to respond to emergency support questions communicated via the appropriate channel within 30 minutes, 24 hours per day, 365 days per year.
The number of emergency support questions is not limited.
-  GitLab B.V. will help the client to install and configure GitLab and provide remove assistance during upgrades.
+  GitLab B.V. will help the client to install and configure GitLab and provide remote assistance during upgrades.
Support for GitLab Continuous Integration (CI) and High Availability (HA) configurations is included with the standard subscription.
</p>