refactor CONTRIBUTING.md and PULL_REQUEST_TEMPLATE.md

deduplicate information, make sure all addition rules are listed in the PR template

.github/CONTRIBUTING.md

@@ -1,16 +1,14 @@
 ## Contributing
 
-Please join us on [chat](https://chat.awesh.unknownplus.com/channel/awesome-selfhosted) to clarify any questions.
+Please join us on [chat](https://chat.awesh.unknownplus.com/channel/awesome-selfhosted) or open a new issue to clarify any questions.
+
+All guidelines for adding new software to the list are listed in [PULL_REQUEST_TEMPLATE.md](PULL_REQUEST_TEMPLATE.md).
+
+Other recommendations:
+
+- To add a new entry, [edit the README.md file](https://github.com/Kickball/awesome-selfhosted/edit/master/README.md) through Github's web interface or a text editor, and send a Pull Request.
+- See [Editing files in another user's repository](https://help.github.com/articles/editing-files-in-another-user-s-repository/), [Creating Pull Requests](https://help.github.com/articles/creating-a-pull-request/), [Using Pull Requests](https://help.github.com/articles/using-pull-requests/) for help on sending your patch.
+- A script to help you format new entries is available at (it requires `make` to be installed): `git clone`/[download](https://github.com/Kickball/awesome-selfhosted/archive/master.zip) and enter the repository, run `make add` and follow the instructions.
+- The list of contributors can be updated with `make contrib`. 
+- Software with no development activity for 6-12 months may be removed from the list.
 
- * The **syntax** for links is ``- [Name](http://homepage/) - Short description. ([Demo](http://url.to/demo), [Source Code](http://url.of/source/code)) `License` `Language` ``.
- * All projects must have their **license** and main server-side **language**/platform/requirement listed
- * Project descriptions must be less than 250 characters long.
- * Entries must be ordered alphabetically.
- * Entries in README.md must be [Free Software](https://en.wikipedia.org/wiki/Free_software).
- * Non-[Free](https://en.wikipedia.org/wiki/Free_software) software must be marked `⊘ Proprietary` next to the title, and added to [non-free.md](../non-free.md).
- * To **add an entry**: clone/[download](https://github.com/Kickball/awesome-selfhosted/archive/master.zip) and enter the repository, run `make add` and follow the instructions; or [edit the README.md file](https://github.com/Kickball/awesome-selfhosted/edit/master/README.md) directly. See [Editing files in another user's repository](https://help.github.com/articles/editing-files-in-another-user-s-repository/), [Creating Pull Requests](https://help.github.com/articles/creating-a-pull-request/), [Using Pull Requests](https://help.github.com/articles/using-pull-requests/) for help on sending your patch.
- * A  minimum of 3 entries are required to start a new category, otherwise add to the Misc/Other category.
- * The `⚠` character must be inserted for software that relies on a third party service the user does not control, e.g ``[Name](http://homepage/) `⚠` - Short description...``.
- * Check current [issues](https://github.com/Kickball/awesome-selfhosted/issues) and [Pull Requests](https://github.com/Kickball/awesome-selfhosted/pulls), as well as [closed issues/PRs](https://github.com/Kickball/awesome-selfhosted/pulls?utf8=%E2%9C%93&q=is%3Aclosed+).
- * The list of contributors can be updated with `make contrib`.
- * Software with no development activity for 6-12 months may be removed from the list.

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,9 +7,10 @@ To ensure your PR is dealt with swiftly please check the following:
     ``- [Name](http://homepage/) - Short description, less than 250 characters. ([Demo](http://url.to/demo), [Source Code](http://url.of/source/code)) `License` `Language` ``
 
 - [ ] Your additions are ordered alphabetically.
-- [ ] Your additions are [Free software](https://en.wikipedia.org/wiki/Free_software), or if not they have been added to [non-free](non-free.md).
+- [ ] Your additions are [Free software](https://en.wikipedia.org/wiki/Free_software), or if not they have been added to [non-free](non-free.md) and marked `⊘ Proprietary`.
 - [ ] Your additions are not already listed at [awesome-sysadmin](https://github.com/n1trux/awesome-sysadmin) (IT infrastructure management), [staticgen.com](https://www.staticgen.com/) or [staticsitegenerators.net](https://staticsitegenerators.net/) (static site generators).
+- [ ] Your additions have their `License` main server-side `Language`/platform/requirement listed.
 - [ ] Any licenses you have added are in our [list of licenses](https://github.com/Kickball/awesome-selfhosted/blob/master/README.md#list-of-licenses).
-- [ ] You have searched the repository for any relevant [issues](https://github.com/Kickball/awesome-selfhosted/issues) or [PRs](https://github.com/Kickball/awesome-selfhosted/pulls).
-- [ ] Any category you are creating has the minimum requirement of 3 items.
+- [ ] You have searched the repository for any relevant [issues](https://github.com/Kickball/awesome-selfhosted/issues) or [PRs](https://github.com/Kickball/awesome-selfhosted/pulls), incluing closed ones.
+- [ ] Any category you are creating has the minimum requirement of 3 items. If not, your addition may be inserted into `Misc/Other`.
 - [ ] Any software project you are adding to the list is actively maintained.