diff --git a/DNS-API-Dev-Guide.md b/DNS-API-Dev-Guide.md
index f8b91bc..bfadd26 100644
--- a/DNS-API-Dev-Guide.md
+++ b/DNS-API-Dev-Guide.md
@@ -5,7 +5,7 @@ This guide is to help any developer interested to build a brand new DNS API for
 ## Some useful tips
 
 1. It's normal to run into errors, so do use `--debug 2` when testing.  For e.g., `acme.sh --issue --debug 2 -d example.com  --dns  dns_myapi`
-2. It's normal to burst rate limits for letsencrypt, so do use `--staging` when testing. For e.g., `acme.sh --issue --staging --debug 2 -d example.com  --dns  dns_myapi` Read [issue 1787](https://github.com/acmesh-official/acme.sh/issues/1787) for details. Remember to remove `--staging` after testing.
+2. It's normal to burst rate limits for Let's Encrypt, so do use `--staging` when testing. For e.g., `acme.sh --issue --staging --debug 2 -d example.com  --dns  dns_myapi` Read [issue 1787](https://github.com/acmesh-official/acme.sh/issues/1787) for details. Remember to remove `--staging` after testing.
 
 
 Let's assume your API name is `myapi`, and you will use your API like:
@@ -34,7 +34,6 @@ Here we go:
     acme.sh searches the script files in either the  acme.sh home dir(`.acme.sh/`) or in the  `dnsapi` subfolder(`.acme.sh/dnsapi`).
 
 
-
 ### 4. There must be 2 functions in your script:
 
     ```sh
@@ -47,7 +46,7 @@ Here we go:
     dns_myapi_rm() { }
 
     ```
-    Actually, the `dns_myapi_add()` is required, but `dns_myapi_rm()` is optional.  You can just write the add function at the beginning for testing purposes, it's `highly recommended` to implement the rm function too. Otherwise, your txt records will increase 1 every 2 months.
+    Actually, the `dns_myapi_add()` is required, but `dns_myapi_rm()` is optional.  You can just write the add function at the beginning for testing purposes, it's `highly recommended` to implement the rm function too. Otherwise, your TXT records will increase 1 every 2 months.
 
 
 ### 5. Guide for the add function
@@ -100,8 +99,8 @@ The full domain could be in either one of the following formats:
 4. `_acme-challenge.www.example.co.uk`
 5. `_acme-challenge.sub1.sub2.www.example.co.uk`
 6. `sub1.sub2.example.co.uk`
-7. `example.com`  ( For [DNS alias mode](https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mode))
-8. `example.co.uk` ( For [DNS alias mode](https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mode))
+7. `example.com`  (For [DNS alias mode](https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mode))
+8. `example.co.uk` (For [DNS alias mode](https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mode))
 
 For most of the DNS providers, you must determine which part is the domain root zone(example.com or example.co.uk), and which part is the subdomain(_acme-challenge or _acme-challenge.www)
 
@@ -110,8 +109,7 @@ Please make sure you can handle all the formats above.*
 
 A good practice is to list all your root zones through your DNS API, then compare and detect which part is the root zone. Then the rest is the subdomain.
 
-See: 
-https://github.com/acmesh-official/acme.sh/blob/master/dnsapi/dns_cf.sh#L142
+See: https://github.com/acmesh-official/acme.sh/blob/master/dnsapi/dns_cf.sh#L142
 
 ```sh
 dns_myapi_add() {
@@ -136,9 +134,9 @@ So, you can just use the HTTP GET/POST/PUT/DELETE method to call their API to ad
 
 acme.sh defined two functions to make http GET/POST/PUT/DELETE connections.
 
-see: 
-https://github.com/acmesh-official/acme.sh/blob/8ded524236347d5a1f7a3169809cab9cf363a1c8/acme.sh#L2013
-https://github.com/acmesh-official/acme.sh/blob/8ded524236347d5a1f7a3169809cab9cf363a1c8/acme.sh#L1887
+See: 
+- https://github.com/acmesh-official/acme.sh/blob/8ded524236347d5a1f7a3169809cab9cf363a1c8/acme.sh#L2013
+- https://github.com/acmesh-official/acme.sh/blob/8ded524236347d5a1f7a3169809cab9cf363a1c8/acme.sh#L1887
 
 ```
 _get() {}
@@ -150,8 +148,8 @@ You can use them directly.
 Please take care that the `_post()` function can send POST/PUT/DELETE requests, not just `POST`.
 
 See: 
-https://github.com/acmesh-official/acme.sh/blob/975a7359a23cd5f8335aca58ceab552d8d967ea7/dnsapi/dns_infoblox.sh#L85
-https://github.com/acmesh-official/acme.sh/blob/ded7a5438ce94c4dd0435068de5c0c384b60e4dd/dnsapi/dns_cf.sh#L73
+- https://github.com/acmesh-official/acme.sh/blob/975a7359a23cd5f8335aca58ceab552d8d967ea7/dnsapi/dns_infoblox.sh#L85
+- https://github.com/acmesh-official/acme.sh/blob/ded7a5438ce94c4dd0435068de5c0c384b60e4dd/dnsapi/dns_cf.sh#L73
 
 Do not use `curl` or `wget` directly in your script. 
 
@@ -177,7 +175,7 @@ _acme-challenge.example.com. 3600 IN TXT "XhVGx_0VVeR5yiaGLHHXrRl2sAbZhI7IugMSdb
 
 #### 5. Additional HTTP headers.
 
-Your HTTP method call may require additional headers for Authorization, ContentType, Accept, Cookies, etc. for the  DNS providers api to add/remove the txt record. You can export _H*n* (_H1, _H2, _H3, etc.) environment variables with the [HTTP header](https://en.wikipedia.org/wiki/List_of_HTTP_header_fields) needed:
+Your HTTP method call may require additional headers for Authorization, ContentType, Accept, Cookies, etc. for the  DNS providers API to add/remove the txt record. You can export _H*n* (_H1, _H2, _H3, etc.) environment variables with the [HTTP header](https://en.wikipedia.org/wiki/List_of_HTTP_header_fields) needed:
 
 ```sh
 ...
@@ -221,8 +219,7 @@ Please take care that the rm function and add function are called in 2 different
 
 You must re-do all the preparations of the add function here too.
 
-See:
-https://github.com/acmesh-official/acme.sh/blob/8ded524236347d5a1f7a3169809cab9cf363a1c8/dnsapi/dns_cf.sh#L106
+See: https://github.com/acmesh-official/acme.sh/blob/8ded524236347d5a1f7a3169809cab9cf363a1c8/dnsapi/dns_cf.sh#L106
 
 
 ### 8. Please also check this bug to support the V2 wildcard cert: