Code samples contain zero-width space chars

[jasonstitt]

Describe the bug

Code samples in the docs can't be copied and pasted and run because they contain invalid chars (specifically zero-width spaces)

Version

n/a

Expected behavior

Go to e.g. https://www.keycloak.org/docs/latest/securing_apps/#usage-2 and copy the code into a file. It should be able to run.

Actual behavior

/Users/xxx/keycloak-err.js:1
​var session = require('express-session');


SyntaxError: Invalid or unexpected token
    at wrapSafe (internal/modules/cjs/loader.js:979:16)
    at Module._compile (internal/modules/cjs/loader.js:1027:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
    at Module.load (internal/modules/cjs/loader.js:928:32)
    at Function.Module._load (internal/modules/cjs/loader.js:769:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
    at internal/main/run_main_module.js:17:47

How to Reproduce?

^

Anything else?

No response