Fix some typos.

Author: jmdobry

functions/background/README.md

@@ -18,7 +18,7 @@ See the [Background functions tutorial][tutorial].
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies:
 

functions/errorreporting/README.md

@@ -16,7 +16,7 @@ See:
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies:
 

functions/helloworld/README.md

@@ -16,7 +16,7 @@ See the [Cloud Functions Hello World tutorial][tutorial].
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies:
 

functions/http/README.md

@@ -18,7 +18,7 @@ See the [HTTP functions tutorial][tutorial].
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies:
 

functions/log/README.md

@@ -16,7 +16,7 @@ See the [Writing and Viewing Logs from Cloud Functions documentation][docs].
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies:
 

functions/ocr/README.md

@@ -16,7 +16,7 @@ See the [Cloud Functions OCR tutorial][tutorial].
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies:
 

functions/sendgrid/README.md

@@ -16,7 +16,7 @@ See the [Cloud Functions SendGrid tutorial][tutorial].
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies:
 

functions/slack/README.md

@@ -16,7 +16,7 @@ See the [Cloud Functions Slack tutorial][tutorial].
 
 ## Run the tests
 
-1. Read and follow the [prerequisites][../../#how-to-run-the-tests].
+1. Read and follow the [prerequisites](../../#how-to-run-the-tests).
 
 1. Install dependencies: