Add Upload a new applcation

Upload-a-new-applcation.md

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+# To upload a new app:
+
+## HTTP request type: `POST`
+
+## Authorization required: Yes (Bearer auth, key is located in .env file)
+
+## Endpoint: `/apps`
+
+## Parameters required:
+```
+Multipart body:
+
+1. metadata (JSON):
+
+  {
+    "name": "App Market Manager",
+    "ver": "1",
+    "appid": "784875887587",
+    "info": "thisisatestedit",
+    "pub": "matu6968"
+  }
+
+2. file:
+Specify to use a file.
+```
+
+### Output:
+
+If it is successful:
+```
+{
+	"name": "App Market Manager",
+	"ver": "1",
+	"appid": "784875887587",
+	"info": "thisisatestedit",
+	"pub": "matu6968",
+	"path": "/uploads/App_Market_Manager/index.js"
+}
+```
+If there is no token or a invalid token:
+```
+Unauthorized
+```
+If there is invalid JSON metadata in the multipart body:
+```
+Invalid metadata JSON
+```
+If there is a problem during a file upload or no file is specified during uploading:
+```
+File upload error
+```
+If there is a problem while saving the uploaded file: (likely cause is directory where the binary is located is set to read only)
+```
+Failed to save file
+```
+If there is a problem while saving apps.json onto the host: (likely cause is directory where the binary is located is set to read only)
+```
+Failed to save app data
+```
+If there is invalid multipart body:
+```
+Invalid form data
+```