ADD: added APP-6 Symbols to the Map

node_modules/milsymbol/dev/README.md

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+# Development resources
+
+Some minor notes and resources so that we don't forget things.
+
+* octagon.svg, base template for creating icons in SVG format.
+
+## Create prerelease
+
+* Update `package.json`, set `version` to a prerelease version, e.g. `2.0.0-rc1`
+* Run `npm pack` to create package
+* Run `npm publish <package>.tgz --tag next` to publish the package under the `next` tag
+* Run `npm install --save package@next` to install prerelease package
+
+## Create release
+
+* Update `package.json`, set `version` to version, e.g. `2.0.0`
+* Run `npm publish` to publish
+* Create release on GitHub with tag `v2.0.0`