chore: add formalities

Signed-off-by: Matej Focko <mfocko@redhat.com>

DCO

@@ -0,0 +1,37 @@
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+1 Letterman Drive
+Suite D4700
+San Francisco, CA, 94129
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.

LICENSE

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+MIT License
+
+Copyright (c) 2020-2022 Matej Focko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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-# avl
+# WAVL Tree Visualization
 
-WAVL Tree Visualization using D3JS
+## Used dependencies
 
-Simply fork repository and run index.html
+- `d3`, `d3-graphviz` and `WASM` - used for rendering the DOT files and animating
+- `bootstrap` - used for CSS and frontend elements
 
-![ScreenShot](avl.png)
+They are fetched via CDN (Content Delivery Network), so you need internet connection,
+unless they are cached (may differ with browsers).
+
+## Running
+
+Simply run an HTTP server from the root of the directory containing web, e.g.
+
+    mfocko@feynman on  main at 16:18:00
+    web λ python3 -m http.server
+    Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...
+
+and follow the link it gives you :)
+
+## Makefile
+
+Targets to ease the quality of life.
+
+### `run`
+
+Alias to `python3 -m http.server`
+
+### `deploy`
+
+Deploys the page to https://me.mfocko.xyz/wavl/web