Drivers: Improve wording in headline

Author: amotl

docs/connect/drivers.md

@@ -1,5 +1,5 @@
 (connect-drivers)=
-# Drivers and Client Libraries
+# All drivers and client libraries
 
 :::{include} /_include/links.md
 :::

docs/connect/index.md

@@ -94,7 +94,7 @@ Database connectivity options and tools.
 - {ref}`connect-php`
 - {ref}`connect-python`
 - {ref}`connect-ruby`
-- {ref}`connect-drivers`
+- Overview: {ref}`connect-drivers`
 
   All available CrateDB drivers and adapters for supported programming languages,
   frameworks, and environments.