Remove depricated version attribute from docker compose files.

See: compose-spec/compose-spec#125
cisagov · Apr 26, 2021 · 1f1861d · 1f1861d
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diff --git a/README.md b/README.md
@@ -30,8 +30,6 @@ docker run cisagov/example:0.0.1
 1. Create a `docker-compose.yml` file similar to the one below to use [Docker Compose](https://docs.docker.com/compose/).
 
     ```yaml
-    version: "3.8"
-
     services:
       example:
         image: cisagov/example:0.0.1
@@ -70,8 +68,6 @@ environment variables.  See the
 1. Then add the secret to your `docker-compose.yml` file:
 
     ```yaml
-    version: "3.8"
-
     secrets:
       quote_txt:
         file: quote.txt

diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,6 +1,4 @@
 ---
-version: "3.7"
-
 # This docker-compose file is used to build and test the container
 
 secrets: