feat: Add README.md

Author: bbfh-dev

README.md

@@ -0,0 +1,53 @@
+# 🔩 mend.html
+
+Mend is a simple HTML template processor designed to, but not limited to be used to generate static websites.
+
+Refer to the [Wiki](https://github.com/bbfh-dev/mend.html/wiki) for in-depth tutorial.
+
+<!-- vim-markdown-toc GFM -->
+
+* [📥 Installation](#-installation)
+* [⚙️ Usage](#-usage)
+* [📌 Developer notes](#-developer-notes)
+
+<!-- vim-markdown-toc -->
+
+- [Wiki / Documentation](https://github.com/bbfh-dev/mend.html/wiki)
+
+# 📥 Installation
+
+Download the [latest release](https://github.com/bbfh-dev/mend.html/releases/latest) or install via the command line with:
+
+```bash
+go install github.com/bbfh-dev/mend.html
+```
+
+# ⚙️ Usage
+
+Run `mend --help` to display usage information.
+
+```bash
+Usage:
+        mend <options> [html files...]
+
+Commands:
+
+Options:
+        --help, -h             Print help and exit
+        --version, -V          Print version and exit
+        --input, -i <value>    Set global input parameters
+        --indent <value>       Set amount of spaces to indent with. Gets ignored if --tabs is used
+        --tabs, -t             Use tabs instead of spaces
+        --decomment            Strips away any comments
+```
+
+# 📌 Developer notes
+
+These are some important development notes, informing about parts of the project that need to be polished out.
+
+> **Expressions are very clunky.**
+>
+> 1. In code they require every node to implement its own processing while referencing a global function that handles them. Basically, it's just a big bowl of spaghetti. There's gotta be a better way of doing them.
+> 1. The way expressions are parsed is very primitive, it could cause unexpected errors/behavior when using bad syntax.
+>
+> — [@bbfh-dev](https://github.com/bbfh-dev/)