Documentation updates

Author: devlinbd2

.DS_Store

@@ -152,20 +152,20 @@ To grant other accounts permission for multiple functions, or for actions that d
 
 ## Granting layer access to other accounts<a name="permissions-resource-xaccountlayer"></a>
 
-To grant layer\-usage permission to another account, add a statement to the layer version's permissions policy with the `add-layer-version-permission` command\. In each statement, you can grant permission to a single account, all accounts, or an organization\.
+To grant layer\-usage permission to another account, add a statement to the layer version's permissions policy using the add\-layer\-version\-permission command\. In each statement, you can grant permission to a single account, all accounts, or an organization\.
 
 ```
 aws lambda add-layer-version-permission --layer-name xray-sdk-nodejs --statement-id xaccount \
 --action lambda:GetLayerVersion  --principal 210987654321 --version-number 1 --output text
 ```
 
-You should see the following output:
+You should see output similar to the following:
 
 ```
 e210ffdc-e901-43b0-824b-5fcd0dd26d16    {"Sid":"xaccount","Effect":"Allow","Principal":{"AWS":"arn:aws:iam::210987654321:root"},"Action":"lambda:GetLayerVersion","Resource":"arn:aws:lambda:us-east-2:123456789012:layer:xray-sdk-nodejs:1"}
 ```
 
-Permissions apply only to a single version of a layer\. Repeat the process each time that you create a new layer version\.
+Permissions apply only to a single layer version\. Repeat the process each time that you create a new layer version\.
 
 To grant permission to all accounts in an organization, use the `organization-id` option\. The following example grants all accounts in an organization permission to use version 3 of a layer\.
 

doc_source/.DS_Store

@@ -34,13 +34,13 @@ This tutorial assumes that you have some knowledge of basic Lambda operations an
 To complete the following steps, you need a command line terminal or shell to run commands\. Commands and the expected output are listed in separate blocks:
 
 ```
-this is a command
+aws --version
 ```
 
 You should see the following output:
 
 ```
-this is output
+aws-cli/2.0.57 Python/3.7.4 Darwin/19.6.0 exe/x86_64
 ```
 
 For long commands, an escape character \(`\`\) is used to split a command over multiple lines\.

doc_source/access-control-resource-based.md

@@ -38,7 +38,7 @@ For more information about best practices for Lambda applications, see [Applicat
 + **Avoid using recursive code** in your Lambda function, wherein the function automatically calls itself until some arbitrary criteria is met\. This could lead to unintended volume of function invocations and escalated costs\. If you do accidentally do so, set the function reserved concurrency to `0` immediately to throttle all invocations to the function, while you update the code\.
 
 ## Function configuration<a name="function-configuration"></a>
-+ **Performance testing your Lambda function** is a crucial part in ensuring you pick the optimum memory size configuration\. Any increase in memory size triggers an equivalent increase in CPU available to your function\. The memory usage for your function is determined per\-invoke and can be viewed in [AWS CloudWatch Logs](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/WhatIsCloudWatchLogs.html)\. On each invoke a `REPORT:` entry will be made, as shown below: 
++ **Performance testing your Lambda function** is a crucial part in ensuring you pick the optimum memory size configuration\. Any increase in memory size triggers an equivalent increase in CPU available to your function\. The memory usage for your function is determined per\-invoke and can be viewed in [Amazon CloudWatch](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/WhatIsCloudWatchLogs.html)\. On each invoke a `REPORT:` entry will be made, as shown below: 
 
   ```
   REPORT RequestId: 3604209a-e9a3-11e6-939a-754dd98c7be3	Duration: 12.34 ms	Billed Duration: 100 ms Memory Size: 128 MB	Max Memory Used: 18 MB

doc_source/applications-tutorial.md

@@ -6,7 +6,7 @@ There are two types of concurrency available:
 + Reserved concurrency – Reserved concurrency creates a pool of requests that can only be used by its function, and also prevents its function from using unreserved concurrency\.
 + Provisioned concurrency – Provisioned concurrency initializes a requested number of execution environments so that they are prepared to respond to your function's invocations\.
 
-This topic details how to manage and configure reserved and provisioned concurrency\. To learn about how concurrency interacts with scaling, [see AWS Lambda function scaling](https://docs.aws.amazon.com/lambda/latest/dg/invocation-scaling.html)\.
+This topic details how to manage and configure reserved and provisioned concurrency\. To learn about how concurrency interacts with scaling, [see Lambda function scaling](https://docs.aws.amazon.com/lambda/latest/dg/invocation-scaling.html)\.
 
 To ensure that a function can always reach a certain level of concurrency, configure the function with [reserved concurrency](#configuration-concurrency-reserved)\. When a function has reserved concurrency, no other function can use that concurrency\. Reserved concurrency also limits the maximum concurrency for the function, and applies to the function as a whole, including versions and aliases\.
 

doc_source/best-practices.md

@@ -39,7 +39,7 @@ You can use the Lambda console to create an Amazon RDS Proxy database proxy\.
 1. Choose **Add**\.
 
 **Pricing**  
-Amazon RDS charges a hourly price for proxies that that is determined by the instance size of your database\. For details, see [RDS Proxy pricing](https://aws.amazon.com/rds/proxy/pricing/)\.
+Amazon RDS charges a hourly price for proxies that is determined by the instance size of your database\. For details, see [RDS Proxy pricing](https://aws.amazon.com/rds/proxy/pricing/)\.
 
 Proxy creation takes a few minutes\. When the proxy is available, configure your function to connect to the proxy endpoint instead of the database endpoint\.