Added roadmap file

.editorconfig

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+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = false
+indent_style = space
+indent_size = 4

ROADMAP.md

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+# Roadmap
+
+This file describes a general plan for the software, divided into versions.
+
+## v0.1.0
+
+### Summary
+
+* Version 1 of backend API
+* Read-only frontend (no login)
+
+### Description
+
+Version 0.1.0 will be the first deployable version. The goal is to replace my
+current blog with an instance of v0.1.0. This includes developing a (basic) SDK
+(probably in Python) that allows me to interact with my instance, or rather
+just post stuff.
+
+## v1.0.0
+
+### Summary
+
+* First stable release
+* Base for all other releases
+
+### Description
+
+For me, a 1.0 release indicates that the project is stable and can be actively
+and efficiently worked on. I basically just want to iron out any wrinkles from
+the 0.1 release, so that I have a solid base to develop all other features on.
+This will also allow me to better combine the development of this project with
+my studies, as it can be properly planned and managed whenever I have the time.
+Any other features won't appear in this file. Rather, they will be managed
+using the milestones & issues on my Gitea instance.