Create README.md

Signed-off-by: marshmallow <marshycity@gmail.com>

.github/README.md

@@ -0,0 +1,37 @@
+# Contributing
+
+## Entries
+
+Start every new entry with
+```markdown
+---
+title: An Important Entry ✅
+---
+
+Content
+```
+
+NOT
+
+```markdown
+---
+title: An Important Entry
+---
+
+# An Important Entry ❌
+
+Content
+```
+
+## Filenames
+
+Use Kebab case for filenames
+| ❌                   | ✅                   |
+| :------------------: |:--------------------:|
+| `an_important_entry` | `an-important-entry` |
+
+Ignore for directories for now
+
+## Directories
+
+Do not create directories any deeper than 1. Only top level directories for different projects.