HTML validation fix 
HTML validation fix 

```
Error: A meta element with an http-equiv attribute whose value is X-UA-Compatible must have a content attribute with the value IE=edge.

From line 1, column 128; to line 1, column 191

ge</title><meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible" /><meta 
```

https://stackoverflow.com/questions/6771258/what-does-meta-http-equiv-x-ua-compatible-content-ie-edge-do
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