README touchups; fix prettier (lint) errors

README.md

@@ -117,9 +117,9 @@ For example, `NJS_ACME_SERVER_NAMES` (env var) is the same as `$njs_acme_server_
 
 There are a few pieces that are required to be present in your `nginx.conf` file. The file at [`examples/nginx.conf`](./examples/nginx.conf) shows them all.
 
-The examples here use `js_var` for configuration variables, but keep in mind you can use the equivalent environment variables instead if that works better in your environment.
+NOTE: The examples here use `js_var` for configuration variables, but keep in mind you can use the equivalent environment variables instead if that works better in your environment. See the Configuration Variables section above for specifics.
 
-### Config Root
+### `nginx.conf` Root
 * Ensures the NJS module is loaded.
    ```nginx
   load_module modules/ngx_http_js_module.so;
@@ -147,7 +147,7 @@ The examples here use `js_var` for configuration variables, but keep in mind you
   ```nginx
   js_shared_dict_zone zone=acme:1m
   ```
-  * NOTE: If you want to use a different `js_shared_dict_zone` name, then you need to define the variable `$njs_acme_shared_dict_zone_name` with the name you would like to use.
+  * NOTE: If you want to use a different `js_shared_dict_zone` name, then you need to define the variable `$njs_acme_shared_dict_zone_name` with the name you would like to use. You can also use the environment variable `NJS_ACME_SHARED_DICT_ZONE_NAME`.
     ```nginx
     js_var $njs_acme_shared_dict_zone_name acme;
     ```
@@ -173,7 +173,7 @@ This may also be defined with the environment variable `NJS_ACME_SERVER_NAMES`.
   ```
 
 ### `location` Blocks
-* Location to handle ACME challenge requests. This must be accessible from the ACME server.
+* Location to handle ACME challenge requests. This must be accessible from the ACME server - in most cases this means accessbile from another host on the Internet if you are using a service like Let's Encrypt.
   ```nginx
   location ~ "^/\.well-known/acme-challenge/[-_A-Za-z0-9]{22,128}$" {
     js_content acme.challengeResponse;

src/index.ts

@@ -33,7 +33,9 @@ const log = new Logger()
 async function clientAutoMode(r: NginxPeriodicSession): Promise<boolean> {
   const result = await clientAutoModeInternal(r)
   if (!result.success) {
-    log.error(`clientAutoModeInternal returned an error: ${JSON.stringify(result.info)}`)
+    log.error(
+      `clientAutoModeInternal returned an error: ${JSON.stringify(result.info)}`
+    )
   }
   return result.success
 }
@@ -54,7 +56,11 @@ async function clientAutoModeWeb(r: NginxHTTPRequest): Promise<void> {
   try {
     const result = await clientAutoModeInternal(r)
     if (!result.success) {
-      log.error(`clientAutoModeInternal returned an error: ${JSON.stringify(result.info)}`)
+      log.error(
+        `clientAutoModeInternal returned an error: ${JSON.stringify(
+          result.info
+        )}`
+      )
     }
     return r.return(result.success ? 200 : 500, JSON.stringify(result.info))
   } catch (e) {
@@ -89,7 +95,8 @@ async function clientAutoModeInternal(
   try {
     email = getVariable(r, 'njs_acme_account_email')
   } catch {
-    retVal.info.error = "Nginx variable '$njs_acme_account_email' or 'NJS_ACME_ACCOUNT_EMAIL' environment variable must be set"
+    retVal.info.error =
+      "Nginx variable '$njs_acme_account_email' or 'NJS_ACME_ACCOUNT_EMAIL' environment variable must be set"
     return retVal
   }