docs(readme): add and fix links

Author: glebec

README.md

@@ -6,11 +6,11 @@ This repo contains notes and runnable examples of the lambda calculus as express
 
 ## Contents
 
-See the [`docs/`](/docs) directory for a formatted version of the code.
+Visit [https://glebec.github.io/lambda-talk](https://glebec.github.io/lambda-talk) for a formatted version of the code.
 
-The runnable JS file (with no dependencies – execute it wherever) is in [`src/index.js`](src/index.js). One way to execute the file is by cloning this repo and running `npm start`. Another way is to view the REPL [here]().
+The runnable JS file is in [`src/index.js`](src/index.js). Execute the file is by cloning this repo and running `npm start`. Or, view the REPL [here](https://repl.it/Jgu4/235).
 
-Slides will be uploaded to Slideshare… just as soon as LinkedIn stops trying to erroneously block the upload.
+Slides will be uploaded to Slideshare… just as soon as LinkedIn stops trying to erroneously block the upload. Video will be linked once on YouTube.
 
 ## Additional Resources