Improve text for dependency detection methods

Make it clear that search order for 'auto' there only applies to generic
dependency names.  Drop 'system' from that list, as it's not actually
used for generic dependencies (nor is it defined what it would do).

1 files changed, 5 insertions, 4 deletions

diff --git a/docs/markdown/Dependencies.md b/docs/markdown/Dependencies.md
index 832832b..d4a371b 100644
--- a/docs/markdown/Dependencies.md
+++ b/docs/markdown/Dependencies.md
@@ -136,23 +136,24 @@ Since they can be used interchangeably, the rest of the build
 definitions do not need to care which one it is. Meson will take care
 of all the work behind the scenes to make this work.
 
-# Dependency method
+# Dependency detection method
 
 You can use the keyword `method` to let Meson know what method to use
 when searching for the dependency. The default value is `auto`.
-Additional dependencies methods are `pkg-config`, `config-tool`, `cmake`,
+Additional methods are `pkg-config`, `config-tool`, `cmake`,
 `builtin`, `system`, `sysconfig`, `qmake`, `extraframework` and `dub`.
 
 ```meson
 cups_dep = dependency('cups', method : 'pkg-config')
 ```
 
-The dependency method order for `auto` is:
+For dependencies without [specific detection
+logic](#dependencies-with-custom-lookup-functionality), the dependency method
+order for `auto` is:
 
   1. `pkg-config`
   2. `cmake`
   3. `extraframework` (OSX only)
-  4. `system`
 
 ## System