links: add alternative-internet, reword description of other software lists to make it more generic

README.md

@@ -771,9 +771,9 @@ See also [Documentation Generators](#documentation-generators), [Wikimatrix](htt
 ## External links
 
  * [Awesome Sysadmin](https://github.com/n1trux/awesome-sysadmin) -  A curated list of amazingly awesome open source sysadmin resources.
- * [PRISM Break](https://prism-break.org/en/), [privacytools.io](https://www.privacytools.io/) -  Mobile, computer & server privacy-conscious applications.
+ * [PRISM Break](https://prism-break.org/en/), [privacytools.io](https://www.privacytools.io/), [Alternative Internet](https://redecentralize.github.io/alternative-internet/) - Lists of software aimed at privacy and decentralization (in some form).
  * Dynamic Domain Name services: [Afraid.org](https://freedns.afraid.org/domain/registry/), [Pagekite](https://pagekite.net/)
- * Communities: [/r/selfhosted](https://www.reddit.com/r/selfhosted), [Auto-Hébergement (FR)](http://www.auto-hebergement.fr/)
+ * Communities/forums: [/r/selfhosted](https://www.reddit.com/r/selfhosted), [Auto-Hébergement (FR)](http://www.auto-hebergement.fr/)
 
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