Update CONTRIBUTING.md

Author: r0f1

CONTRIBUTING.md

@@ -3,8 +3,7 @@
 Please ensure your pull request adheres to the following guidelines:
 
 - Suggestions can include packages, blog entries, books, talks on youtube, tutorials, code snippets, links to other repos etc. But make sure [everything is awesome](https://www.youtube.com/watch?v=9cQgQIMlwWw). 
-- Suggested packages should be awesome and documented.
-- Suggested packages should not be too old. If a package has not been maintained for 7 years, maybe do not add it. Use your best judgement. 
+- Suggested packages should be well documented and not be too old. If a package has not been maintained for 7 years, maybe do not add it. Use your best judgement. 
 - Check if you package is a duplicate. Duplicates are okay, only if a package belongs to more than one category. If you want to add a package about time series anomaly detection, it is okay to add it to both the time series and the anomaly detection section. 
 - Make an individual pull request for each suggestion.
 - Use the following format for packages: `[PACKAGE](LINK) - DESCRIPTION  `. Notice the two trailing whitespaces. These are important.