docs: Make it clear that the Setup step must be ran before the Execue step

docs/examples/azure/gitversion/execute/usage-examples.md

@@ -4,13 +4,21 @@ Find out how to use the **gitversion/execute** task using the examples below.
 
 > The examples use the latest _0.x_ version of the GitVersion Execute task.  It is recommended to use the latest released version in your own pipelines.
 
-Note that if the pipeline is setup to use a shallow git fetch mode the GitVersion Execute task will fail. It is required to use fetchDepth of 0 like so:
+Note that if the pipeline is setup to use a shallow git fetch mode the GitVersion Execute task will fail. It is required to use `fetchDepth: 0`.
+You must also run the GitVersion Setup step before the Execute step:
 
 ```yaml
 - checkout: self
   fetchDepth: 0
+
+- task: gitversion/setup@0
+  displayName: Install GitVersion
+  inputs:
+    versionSpec: '5.x'
 ```
 
+These steps are omitted from the examples for brevity.
+
 ## Inputs
 
 The Execute GitVersion task accepts the following inputs:

docs/examples/azure/gitversion/index.md

@@ -2,6 +2,8 @@
 
 Use the following links to see usage examples of the Setup GitVersion (**gitversion/setup**) and Execute GitVersion (**gitversion/execute**) tasks.
 
+Note: You need to run the Setup step before the Execute step, otherwise the Execute step will fail with the error `Unable to locate executable file: 'dotnet-gitversion'`.
+
 ## Setup GitVersion (gitversion/setup)
 
 - [Usage examples](setup/usage-examples.md)

docs/examples/github/gitversion/execute/usage-examples.md

@@ -2,17 +2,23 @@
 
 Find out how to use the **gitversion/execute** action using the examples below.
 
-For the GitVersion workflow to execute successfully, you must checkout your Git repository with `fetch-depth: 0` to fetch all history for all tags and branches, as follows:
+For the GitVersion workflow to execute successfully, you must checkout your Git repository with `fetch-depth: 0` to fetch all history for all tags and branches.
+You must also run the GitVersion Setup step before the Execute step:
 
 ```yaml
 steps:
   - name: Checkout
     uses: actions/checkout@v2
     with:
       fetch-depth: 0
+
+  - task: gitversion/setup@0
+    displayName: Install GitVersion
+    inputs:
+      versionSpec: '5.x'
 ```
 
-This step is omitted from the examples for brevity.
+These steps are omitted from the examples for brevity.
 
 > The examples use version _0.9.7_ of the GitVersion Execute action.  It is recommended to use the latest released version in your own workflows.
 

docs/examples/github/gitversion/index.md

@@ -2,6 +2,8 @@
 
 Use the following links to see usage examples of the Setup GitVersion (**gitversion/setup**) and Execute GitVersion (**gitversion/execute**) actions.
 
+Note: You need to run the Setup step before the Execute step, otherwise the Execute step will fail with the error `Unable to locate executable file: 'dotnet-gitversion'`.
+
 ## Setup GitVersion (gitversion/setup)
 
 - [Usage examples](setup/usage-examples.md)