Update index.md (#170)

* Update index.md

change rekor to cosign as the verification tool.  Also mention in the text that cosign has the ability to verify.

Signed-off-by: jonvnadelberg <121979961+jonvnadelberg@users.noreply.github.com>

* Update index.md

fix link by adding / to end

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* Update index.md

remove sentence as being unnecessary.

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* Update index.md

add installation instruction

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* Update index.md

Fix bad link

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* Update index.md

Remove "And verify"

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* Update index.md

remove fulcio instruction as that is not for clients.

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* Update index.md

Put in added explanation for people who wish to verify, indicating that they need to install cosign first.

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* Update index.md

reword clumsy sentence

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* Update content/en/index.md

Co-authored-by: ltagliaferri <lisa.tagliaferri@gmail.com>
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* Update verify.md

add note to verify telling people to install cosign to verify.

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* Update verify.md

add "blob" to the install instruction.

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* Update content/en/cosign/verify.md

Co-authored-by: olivekl <83081275+olivekl@users.noreply.github.com>
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* Update index.md

change bullet points to make things easier to jump to.

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* Update index.md

typo

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* Update index.md

remove added verify line as it is being put in bullet point.

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* Update index.md

edit gitsign line.

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---------

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Co-authored-by: ltagliaferri <lisa.tagliaferri@gmail.com>
Co-authored-by: olivekl <83081275+olivekl@users.noreply.github.com>

content/en/cosign/verify.md

@@ -4,6 +4,8 @@ category: "Cosign"
 position: 106
 ---
 
+> **Note**: To verify a signed artifact or blob, first [install Cosign](/cosign/installation/), then follow the instructions below.
+
 The general verification format with the `cosign verify` command is as follows.
 
 ```shell

content/en/index.md

@@ -14,11 +14,11 @@ It’s free to use for all developers and software providers, with Sigstore’s
 
 ## How to use Sigstore
 
-* Sign software artifacts with [Cosign](/cosign/overview/) — [Quick start](/cosign/overview/#quick-start)
-* Sign Git commits with [Gitsign](/gitsign/overview/) - [Quick start](/gitsign/overview/#quick-start)
-* Verify entries with [Cosign](/cosign/verify/)
-* Use the [policy controller](/policy-controller/overview/) to enforce Kubernetes policies
-* Use the [Fulcio Certificate Authority](/fulcio/overview/)
+* I want to [install and Quick Start](/cosign/overview/#quick-start)
+* I want to [sign a blob](cosign/signing_with_blobs/)
+* I want to [sign a container](cosign/signing_with_containers/)
+* I want to [Sign Git commits with Gitsign](/gitsign/overview/) - [Quick Start](/gitsign/overview/#quick-start)
+* I want to [verify entries with Cosign](/cosign/verify/)
 
 ## How Sigstore works