Update CONTRIBUTING.md, PULL_REQUEST_TEMPLATE.md, Makefile:

 * Update syntax guidelines according to new indentation convetion
 * Include relevant information in both files
 * Wording

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,11 +4,12 @@ To ensure your PR is dealt with swiftly please check the following:
 
 - [ ] Your submissions are formatted according to the guidelines. 
         
-    ``[Name](http://homepage/) - Short description. ([Demo](http://url.to/demo), [Source Code](http://url.of/source/code)) `License` `Language` ``
+    ``- [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 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).
 - [ ] 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 or PRs.
+- [ ] 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.
+- [ ] Any software project you are adding to the list is actively maintained.

Makefile

@@ -53,7 +53,7 @@ add:
 	else Moreinfo=$$(echo "($$CDemo$$CSource)" | sed 's|)\[|), [|g') ;\
 	fi ;\
 	echo -e "Copy this entry to your clipboard, paste it in the appropriate category:\n\n" ;\
-	echo " * [$$Name]($$Url) - $${Description} $${Moreinfo} \`$$License\` \`$$Language\`"
+	echo "- [$$Name]($$Url) - $${Description} $${Moreinfo} \`$$License\` \`$$Language\`"
 
 
 #TODO ask for category and insert item accordingly