Add support for strikethrough

[rianmurnen]

Monokai Extended supports strikethrough by wrapping text in ~~ such as strikethrough.

From lines 1465 – 1477:

<dict>
  <key>name</key>
  <string>Markup: strike</string>
  <key>scope</key>
  <string>markup.strike</string>
  <key>settings</key>
  <dict>
    <key>fontStyle</key>
    <string></string>
    <key>foreground</key>
    <string>#cc4273</string>
  </dict>
</dict>

[rianmurnen]

Temporary solution using user-settings:

1. Go to Settings > Customize Color Scheme
2. Add the following rule:

{
  "variables":
  {
  },
  "globals":
  {
  },
  "rules":
    [
      {
        "name": "Markup: strike",
        "scope": "markup.strike",
        "foreground": "#cc4273"
      }
  ]
}