Remove some deprecated sheets

inline-docs.md

@@ -1,37 +0,0 @@
----
-title: Inline documentation
----
-
-* Ruby: rdoc
-* JavaScript: jsdoc
-
-### RDoc
-
-    # Gets a circle's area
-    #
-    # @example
-    #
-    #   area(3)
-    #   #=> 28.27
-    #
-    # @param [Number] r The radius of the ricle
-    # @return [true] If so
-    #
-    # == Definition lists
-    #
-    # list::  hi.
-    # +foo+:: parameterized
-    #
-    # == Definition lists
-    # [foo]   also
-    # [bar]   like this
-
-http://rdoc.rubyforge.org/RDoc/Markup.html
-
-### Jsdoc
-
-    /**
-     * Ads numbers
-     *
-     * @this {Circle}
-     * @param {Number} r The radius

rails-features.md

@@ -1,14 +0,0 @@
----
-title: Rails features
-category: Rails
----
-
-### [Page caching](https://github.com/rails/actionpack-page_caching)
-
-    class WeblogController < ActionController::Base
-      caches_page :show, :new
-    end
-
-This will generate cache files such as `weblog/show/5.html` and 
-`weblog/new.html`, which match the URLs used that would normally trigger dynamic 
-page generation

rubiks.md

@@ -1,30 +0,0 @@
----
-title: Rubiks cube
----
-
-### Getting the cross
-
- * L (N W C)
- * line (E C W)
- * cross (N E W S C)
-
-  `F R U R' U' F'`
-
-### Aligning the cross's sides
-
- * Nothing aligned
- * line (N C S)
- * L (N C E)
- * All are aligned
-
-  `R U R' U R 2U R'`
-
-### Aligning the corners
-
- * 0 spots ok
- * 1 spot ok in south-east
- * 4 spots ok: proceed
-
-  `U R U' L' U R' U' L`
-
-

travis-gh-pages.md

@@ -1,61 +0,0 @@
----
-title: Deploy gh-pages via Travis
-category: Git
----
-
-Taken from https://medium.com/@nthgergo/publishing-gh-pages-with-travis-ci-53a8270e87db
-
-### Create an OAuth token and encrypt it
-
-Use https://github.com/settings/tokens/new
-
-```sh
-# via ruby
-gem install travis
-travis encrypt -r user/repo GITHUB_TOKEN=[the token here]
-```
-
-### Make it run the deploy script on deploy
-
-```yaml
- # .travis.yml
-script:
-  - bash ./scripts/deploy-to-gh-pages.sh
-env:
-  global:
-    - GITHUB_REPO: "user/repo"
-    - secure: "nlnXJW/imf/w..."  # <-- from travis-encrypt
-```
-
-### Write deployer
-
-Create the file `scripts/deploy-to-gh-pages.sh`
-
-```sh
-#!/bin/bash
-# See https://medium.com/@nthgergo/publishing-gh-pages-with-travis-ci-53a8270e87db
-set -o errexit
-
-rm -rf public
-mkdir public
-
-# config
-git config --global user.email "nobody@nobody.org"
-git config --global user.name "Travis CI"
-
-# build (CHANGE THIS)
-make
-
-# deploy
-cd public
-git init
-git add .
-git commit -m "Deploy to Github Pages"
-git push --force --quiet "https://${GITHUB_TOKEN}@$github.com/${GITHUB_REPO}.git" master:gh-pages > /dev/null 2>&1
-```
-
-From Ractive, this might be useful in certain cases:
-
-```
-if [ "$TRAVIS_PULL_REQUEST" != "false" -o "$TRAVIS_BRANCH" != "master" ]; then exit 0; fi
-```