Update client use of libcurl docs

* Update client use of libcurl docs

docs/client-architecture.md

@@ -1,19 +1,19 @@
 # OneDrive Client for Linux Application Architecture
 
 ## How does the client work at a high level?
-The client utilises the 'libcurl' library to communicate with the Microsoft Authentication Service and the Microsoft Graph API. The diagram below shows this high level interaction with the Microsoft services online:
+The client utilises the 'libcurl' library to communicate with Microsoft OneDrive via the Microsoft Graph API. The diagram below shows this high level interaction with the Microsoft and GitHub API services online:
 
 ![client_use_of_libcurl](./puml/client_use_of_libcurl.png)
 
 Depending on your operational environment, it is possible to 'tweak' the following options which will modify how libcurl operates with it's interaction with Microsoft OneDrive services:
 
-*  Downgrade all HTTPS operations to use HTTP1.1 ('force_http_11')
-*  Control how long a specific transfer should take before it is considered too slow and aborted ('operation_timeout')
-*  Control libcurl handling of DNS Cache Timeout ('dns_timeout')
-*  Control the maximum time allowed for the connection to be established ('connect_timeout')
-*  Control the timeout for activity on an established HTTPS connection ('data_timeout')
-*  Control what IP protocol version should be used when communicating with OneDrive ('ip_protocol_version')
-*  Control what User Agent is presented to Microsoft services ('user_agent')
+*  Downgrade all HTTPS operations to use HTTP1.1 (Config Option: `force_http_11`)
+*  Control how long a specific transfer should take before it is considered too slow and aborted (Config Option: `operation_timeout`)
+*  Control libcurl handling of DNS Cache Timeout (Config Option: `dns_timeout`)
+*  Control the maximum time allowed for the connection to be established (Config Option: `connect_timeout`)
+*  Control the timeout for activity on an established HTTPS connection (Config Option: `data_timeout`)
+*  Control what IP protocol version should be used when communicating with OneDrive (Config Option: `ip_protocol_version`)
+*  Control what User Agent is presented to Microsoft services (Config Option: `user_agent`)
 
 **Note:** The default 'user_agent' value conforms to specific Microsoft requirements to identify as an ISV that complies with OneDrive traffic decoration requirements. Changing this value potentially will impact how Microsoft see's your client, thus your traffic may get throttled. For further information please read: https://learn.microsoft.com/en-us/sharepoint/dev/general-development/how-to-avoid-getting-throttled-or-blocked-in-sharepoint-online
 

docs/puml/client_use_of_libcurl.puml

@@ -1,16 +1,32 @@
 @startuml
 participant "OneDrive Client\nfor Linux" as od
 participant "libcurl" as lc
+participant "Client Web Browser" as browser
 participant "Microsoft Authentication Service\n(OAuth 2.0 Endpoint)" as oauth
+participant "GitHub API" as github
 participant "Microsoft Graph API" as graph
 
 activate od
 activate lc
 
-od->oauth: Request access token
+od->od: Generate Authentication\nService URL
+activate browser
+od->browser: Navigate to Authentication\nService URL via Client Web Browser
+browser->oauth: Request access token
 activate oauth
-oauth-->od: Access token
+oauth-->browser: Access token
+browser-->od: Access token
 deactivate oauth
+deactivate browser
+
+od->lc: Check application version\nvia api.github.com
+activate github
+lc->github: Query release status
+activate github
+github-->lc: Release information
+deactivate github
+lc-->od: Process release information
+deactivate lc
 
 loop API Communication
     od->lc: Construct HTTPS request (with token)
@@ -22,4 +38,4 @@ loop API Communication
     lc-->od: Process response
     deactivate lc
 end
-@enduml
+@enduml