fix markdown errors

- inline code should use proper formatting - single-backticks, not bold
- don't use `<br>` in markdown
- fixed XML listing to be readable rather than a single line
- fixed ending fenced code markdown error

Author: andrewconnell

docs/apis/export-amr-api.md

@@ -222,14 +222,29 @@ CloudBlockBlob blob = folder.GetBlockBlobReference(manifestFileName);
 
 ### Encoding invalid XML characters
 
-When invalid XML characters are detected in relevant fields, they're encoded. For any attribute that is XML encoded, decoding is needed for the value. Encoded fields are included in **EncodedAttributes**, in a comma-separated attribute list.
+When invalid XML characters are detected in relevant fields, they're encoded. For any attribute that is XML encoded, decoding is needed for the value. Encoded fields are included in `EncodedAttributes`, in a comma-separated attribute list.
+
+**Example**
 
-**Example**</br>
 In this  example, these attributes are encoded: URL, ParentWebURL, Name, and Version.
 
 ```xml
-<File Url="testlib_x002F_File_0905-1653-31240" Id="e72e2015-91a4-4d07-ae9a-7b6c76918d2a" ParentWebId="7206fc09-e4af-48b3-8730-ed7321396d7a" ParentWebUrl="_x002F_" Name="File_0905-1653-31240" ListItemIntId="3" ListId="48ea9454-9538-47ae-926d-917df80bc93e" ParentId="33ff2f12-c818-4c8d-8578-c6d057172fd8" ScopeId="385cd4d5-86da-4183-bdac-2e83da1b05fc" TimeCreated="2021-11-08T03:57:05" TimeLastModified="2021-01-17T16:01:48" Version="_x0031_.0" FileSize="1" Level="1" EncodedAttributes="Url,ParentWebUrl,Name,Version">
-``````
+<File Url="testlib_x002F_File_0905-1653-31240"
+      Id="e72e2015-91a4-4d07-ae9a-7b6c76918d2a"
+      ParentWebId="7206fc09-e4af-48b3-8730-ed7321396d7a"
+      ParentWebUrl="_x002F_"
+      Name="File_0905-1653-31240"
+      ListItemIntId="3"
+      ListId="48ea9454-9538-47ae-926d-917df80bc93e"
+      ParentId="33ff2f12-c818-4c8d-8578-c6d057172fd8"
+      ScopeId="385cd4d5-86da-4183-bdac-2e83da1b05fc"
+      TimeCreated="2021-11-08T03:57:05"
+      TimeLastModified="2021-01-17T16:01:48"
+      Version="_x0031_.0"
+      FileSize="1"
+      Level="1"
+      EncodedAttributes="Url,ParentWebUrl,Name,Version">
+```
 
 >[!Warning]
 >If XSD is replied on to parse manifest files, parsing may fail when **EncodedAttributes** is used.