docs: back to main page link, link to rcstack docs higher, small fixes

docs/index.rst

@@ -37,6 +37,18 b' and commit files and |repos| while manag'
 
 .. toctree::
    :maxdepth: 1
+   :caption: Documentation directory
+
+   Back to documentation directory <https://docs.rhodecode.com/>
+
+.. toctree::
+   :maxdepth: 1
+   :caption: RhodeCode RCstack Documentation
+
+   RhodeCode RCstack Installer <https://docs.rhodecode.com/rcstack/>
+
+.. toctree::
+   :maxdepth: 1
    :caption: Admin Documentation
 
    install/quick-start
@@ -78,12 +90,6 b' and commit files and |repos| while manag'
    contributing/contributing
 
 .. toctree::
-   :maxdepth: 2
-   :caption: RhodeCode RCstack Documentation
-
-   RhodeCode RCstack Installer <https://docs.rhodecode.com/rcstack/>
-
-.. toctree::
    :maxdepth: 1
    :caption: About
 

docs/install/quick-start.rst

@@ -4,7 +4,7 b' Quick Start Installation Guide'
 ==============================
 
 Since version 5.0.0 Rhodecode runs in Docker, and to get |RCE| up and running,
-you need to use RCstack installer - https://docs.rhodecode.com/rcstack/install/installation.html/
+you need to use RCstack installer - https://docs.rhodecode.com/rcstack/install/installation.html
 
 Please follow RCstack documentation steps to set up your |RCE| installation.
 

docs/install/using-sqllite.rst

@@ -1,23 +1,12 b''
 .. _install-sqlite-database:
 
-SQLite
-------
+SQLite (Deprecated)
+-------------------
 
 .. important::
 
-    We do not recommend using SQLite in a large development environment
-    as it has an internal locking mechanism which can become a performance
-    bottleneck when there are more than 5 concurrent users.
+    As of 5.x, SQLite is no longer supported, we advise to migrate to MySQL or PostgreSQL.
 
-|RCE| installs SQLite as the default database if you do not specify another
-during installation. SQLite is suitable for small teams,
-projects with a low load, and evaluation purposes since it is built into
-|RCE| and does not require any additional database server.
-
-Using MySQL or PostgreSQL in an large setup gives you much greater
-performance, and while migration tools exist to move from one database type
-to another, it is better to get it right first time and to immediately use
-MySQL or PostgreSQL when you deploy |RCE| in a production environment.
 
 Migrating From SQLite to PostgreSQL
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^