Add environment variable for M4 users (#220)

Add comment and environment variable to `docker-compose.yml `for M4
users to comment out in order to run Open Crawler

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---------

Co-authored-by: Navarone Feekery <13634519+navarone-feekery@users.noreply.github.com>

docker-compose.yaml

@@ -8,6 +8,9 @@ services:
       - elastic
     stdin_open: true   # Equivalent to -i
     tty: true          # Required for interactive mode
+    # Uncomment enviroment variable if running on MacOS M4 and experiencing Java Runtime errors
+    # environment:
+    #   - "_JAVA_OPTIONS=-XX:UseSVE=0"
 
 networks:
   elastic: