docs: add archtika to example apps section on ecosystem page (#4007)

Author: thiloho

docs/ecosystem.rst

@@ -34,6 +34,7 @@ Templates
 Example Apps
 ------------
 
+* `archtika <https://github.com/archtika/archtika>`_ - self‑hosted CMS
 * `delibrium-postgrest <https://gitlab.com/delibrium/delibrium-postgrest/>`_ - example school API and front-end in Vue.js
 * `ETH-transactions-storage <https://github.com/Adamant-im/ETH-transactions-storage>`_ - indexer for Ethereum to get transaction list by ETH address
 * `general <https://github.com/PierreRochard/general>`_ - example auth back-end

docs/postgrest.dict

@@ -16,6 +16,7 @@ Cardano
 cd
 centric
 CLI
+CMS
 coercible
 conf
 Cloudflare