WebGL is enabled by default, README and --help says it's off by default

[prusnak]

See

(default = true)

gotty/server/options.go

Line 34 in aa86a34

EnableWebGL bool `hcl:"enable_webgl" flagName:"enable-webgl" flagDescribe:"Enable WebGL renderer" default:"true"`

and

(default = false)

gotty/README.md

Line 75 in aa86a34

--enable-webgl Enable WebGL renderer (default: false) [$GOTTY_ENABLE_WEBGL]

gotty --help also shows:

   --enable-webgl                Enable WebGL renderer (default: false) [$GOTTY_ENABLE_WEBGL]

Suggestion: either set it to false in options.go (when it's hard to fix #15) or set it to true in README.md (when it's easy to fix #15). Not sure how to fix the --help prompt.