Update documentation

Author: Itai Gendler

docs-template/.gitmodules

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 title = "Authentication"
-description = ""
 date = "2017-04-24T18:36:24+02:00"
+weight = 30
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docs-template/content/authentication/_index.md

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 title = "Builds"
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+weight = 70
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docs-template/content/builds/_index.md

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 title = "Compositions"
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+weight = 90
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docs-template/content/compositions/_index.md

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 title = "Contexts"
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+weight = 40
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docs-template/content/contexts/_index.md

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 title = "Environments"
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+weight = 100
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docs-template/content/environments/_index.md

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 title = "Getting Started"
 description = ""
 date = "2017-04-24T18:36:24+02:00"
-weight = 1
+weight = 10
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 ## install
@@ -18,5 +18,6 @@ You can generate a new one from the <a href="https://g.codefresh.io/account/toke
 
 Once you have an API key, create a new authentication context:<br> `codefresh auth create-context --api-key {API_KEY}`
 
+
 <br />
-#### That's it, you are go to go!
+#### That's it, you are good to go!

docs-template/content/getting-started/_index.md

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+title = "Help"
+description = ""
+date = "2017-04-24T18:36:24+02:00"
+weight = 1000
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+
+To get help and usage instructions you can run `codefresh --help`.<br />
+A help message will appear in the terminal.<br />
+
+You can also run `--help` on any possible command to get specific help for a command.<br /> 
+For example: `codefresh get pipelines --help` will show help information for getting pipelines.
+

docs-template/content/help/_index.md

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+title = "Version"
+description = ""
+date = "2017-04-24T18:36:24+02:00"
+weight = 10
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+
+Run `codefresh version` to see the current CLI version.

docs-template/content/help/version.md

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 title = "Images"
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+weight = 80
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