diff --git a/README_SETUP.md b/README_SETUP.md
index 211eaadf434198aa5c26fb339d4a61e185ee7527..7623cfa0f4a89c54575504ef94dd3f29379ae49a 100644
--- a/README_SETUP.md
+++ b/README_SETUP.md
@@ -7,7 +7,8 @@
 
 ## Create the configuration
 * Create an empty `.config` file. For the default values and the meaning of
-  these default values see [config.defaults](config.defaults).  For each
+  these default values see [config.defaults](https://gitlab.com/caosdb/caosdb-mysqlbackend/-/blob/main/config.defaults).
+  For each
   parameter that you want to change, add a corresponding line in your `.config`
   file. You probably want to change the passwords.  As the passwords are stored
   unencrypted in the `.config` file, make sure nobody else can read it.
diff --git a/doc/conf.py b/doc/conf.py
index 72f154b48d83d6b01f825a75ba721fdd13a4575d..20f21f40728038c43e98725f6929bd1905d66dc6 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -69,7 +69,7 @@ master_doc = 'index'
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = "en"
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
diff --git a/doc/index.rst b/doc/index.rst
index b621ddb98e914b2c4db1dd40bdb6453eb89a92fd..652b8556ca4cbbf29a6d29063e0d6d12d9b8b83e 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -1,6 +1,6 @@
 
 Welcome to documentation of LinkAhead's MySQL Backend!
-===================================================
+======================================================
 
 .. toctree::
    :maxdepth: 2
diff --git a/doc/table_structure.md b/doc/table_structure.md
index 1641c568d18ec3fb87f60211aee816e6de049e7c..ce0eaacf05e5f887e2abdf56d75e31fc053dafca 100644
--- a/doc/table_structure.md
+++ b/doc/table_structure.md
@@ -85,12 +85,15 @@ The type of properties is stored here.  The columns are:
 - `hash` :: Hash of the file contents, as binary. **TODO** Which algorithm?
 - `checked_timestamp` :: Timestamp when last checked? 
 
-## `feature_config` ##
+## feature_config ##
+
+```sql
 +-------------------+---------+
 | _key              | _value  |
 +-------------------+---------+
 | ENTITY_VERSIONING | ENABLED |
 +-------------------+---------+
+```
 
 A key-value store for features.  Use the `is_feature_config` procedure to check for the status of
 specific features.