Aaz-dev

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* Fix bug when special characters appeared in discrimination value (275)
* Fix docs link in homepage (277)

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* Adding `profile_` prefix for azure stack profile in CLI aaz package (274)

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* Update docs for Command Usage and Testing (270)
* Fix bugs while command has no arguments (271)
* Add docs for subcommand generation (272)

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* Add log information for aaz verification (268)

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* Add command `aaz-dev command-model verify` to verify aaz metadata (265)

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* Improve Docs of CLI Generator (258)
* Improve doc display (259)
* [Doc] Add note for examples (260)
* Update generation template for pagination (261)
* Change the initial extension version to 1.0.0b1 (263)