Moved roundup-tracker.org infrastructure docs to website/README.txt This change makes developers.txt as the place for people contributing to the code base and README.txt to those maintaining the infrastructure. The old state was website/README.txt had reference to doc/developers.txt for updating issues.roundup-tracker.org. Removed reference and move docs to website/README.txt. doc/developers.txt had a section on updating website and wiki that referenced website/README.txt. Removed section, replaced with sentence that references website/README.txt for all infrastructure.

<tal:block metal:use-macro="templates/page/macros/icing">
<title metal:fill-slot="head_title"
 i18n:translate="">Registration in progress - <span i18n:name="tracker"
 tal:replace="config/TRACKER_NAME" /></title>
<span metal:fill-slot="body_title" tal:omit-tag="python:1"
 i18n:translate="">Registration in progress...</span>
<td class="content" metal:fill-slot="content">

<p i18n:translate="">You will shortly receive an email
to confirm your registration. To complete the registration process,
visit the link indicated in the email.
</p>

</td>
</tal:block>