Composer Index basic files added

ReadMe.md

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+# Composer Index
+
+Main composer index
+
+Folders:
+
+- data: Base data to create packages list frmo
+- satis: TODO (packages.json creation tool)
+- www: web frontend
+
+## Setup from central composer
+
+| Host | Repo | Location | Type |
+| - | - | - | - |
+| [](https://git.egplusww.jp/api/packages/Composer/composer) | udon | Composer Group | gitea composer packages |
+| [](http://composer.egplusww.jp) | udon | All | General Live (use this) |
+| [](http://composer.tokyo.tequila.jp) | soba-local | All | Local test |
+| [](http://composer-local.tokyo.tequila.jp) | udon-local | All | Local Live, no https |
+
+composer.json:
+
+Version: `@dev` or `^n`, etc
+
+### gitea host setup (possible best and reocmmended)
+
+#### set global with command
+
+```sh
+composer global config repositories.git.egplusww.jp.Composer composer https://git.egplusww.jp/api/packages/Composer/composer
+```
+
+#### local setup (command or manual)
+
+```sh
+composer config repositories.git.egplusww.jp.Composer composer https://git.egplusww.jp/api/packages/Composer/composer
+```
+
+OR
+
+```json
+{
+    "repositories": [{
+            "type": "composer",
+            "url": "https://git.egplusww.jp/api/packages/Composer/composer"
+        }
+    ]
+}
+```
+
+### udon based composer repo list
+
+For live settings
+
+```sh
+composer config repositories.composer.egplusww.jp composer https://composer.egplusww.jp
+```
+
+OR
+
+```json
+{
+    "repositories": [
+        {
+            "type": "composer",
+            "url": "https://composer.egplusww.jp"
+        }
+    ],
+    "require": {
+        "<package name>": "<version>"
+    }
+}
+```
+
+### soba based composer repo list
+
+For Local test, note that secure-http has to be turned off:
+
+```sh
+composer config repositories.test-soba composer http://composer.tokyo.tequila.jppackages/Composer/composer
+composer config secure-http false
+```
+
+OR
+
+```json
+{
+    "repositories": [
+        {
+            "type": "composer",
+            "url": "http://composer.tokyo.tequila.jp"
+        }
+    ],
+    "config": {
+        "secure-http": false
+    }
+}
+```