[docs] mention different levels of update commands (elastic#14066)

* mention different levels of update commands
jorgemarey · Dec 13, 2019 · 4280736 · 4280736
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commit 4280736
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diff --git a/docs/devguide/contributing.asciidoc b/docs/devguide/contributing.asciidoc
@@ -96,6 +96,8 @@ and documentation. The primary command used for this is:
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 make update
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+Each Beat has its own `update` target, as well as a master `update` in the repository root. 
+If a PR adds or removes a dependency, run `make update` in the root `beats` directory.
 
 Another command properly formats go source files and adds a copyright header: