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Update compose-file-v2.md

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dark0dave 2017-07-26 12:59:51 +01:00 committed by Victoria Bialas
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compose/compose-file/compose-file-v2.md
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@ -1304,9 +1304,6 @@ refer to it within the Compose file:
## Variable substitution
## Variable substitution
Your configuration options can contain environment variables. Compose uses the
variable values from the shell environment in which `docker-compose` is run. For
example, suppose the shell contains `POSTGRES_VERSION=9.3` and you supply this