api docs (authorization): rephrase comment and fix typo (#365)

Author: draptik

src/Saturn.Extensions.Authorization/OAuth.fs

@@ -17,7 +17,7 @@ let private addCookie state (c : AuthenticationBuilder) = if not state.CookiesAl
 
 type Saturn.Application.ApplicationBuilder with
     /// Enables default Google OAuth authentication.
-    /// `jsonToClaimMap` should contain sequance of tuples where first element is a name of the of the key in JSON object and second element is a name of the claim.
+    /// `jsonToClaimMap` should contain a sequence of tuples where the first element is the name of the key in the JSON object and the second element is the name of the claim.
     /// For example: `["id", ClaimTypes.NameIdentifier; "displayName", ClaimTypes.Name]` where `id` and `displayName` are names of fields in the Google JSON response (https://developers.google.com/+/web/api/rest/latest/people#resource).
     [<CustomOperation("use_google_oauth")>]
     member __.UseGoogleAuth(state: ApplicationState, clientId : string, clientSecret : string, callbackPath : string, jsonToClaimMap : (string * string) seq) =
@@ -71,7 +71,7 @@ type Saturn.Application.ApplicationBuilder with
       }
 
     /// Enables default GitHub OAuth authentication.
-    /// `jsonToClaimMap` should contain sequance of tuples where first element is a name of the of the key in JSON object and second element is a name of the claim.
+    /// `jsonToClaimMap` should contain a sequence of tuples where the first element is the name of the key in the JSON object and the second element is the name of the claim.
     /// For example: `["login", "githubUsername"; "name", "fullName"]` where `login` and `name` are names of fields in GitHub JSON response (https://developer.github.com/v3/users/#get-the-authenticated-user).
     [<CustomOperation("use_github_oauth")>]
     member __.UseGithubAuth(state: ApplicationState, clientId : string, clientSecret : string, callbackPath : string, jsonToClaimMap : (string * string) seq) =
@@ -128,7 +128,7 @@ type Saturn.Application.ApplicationBuilder with
 
     /// Enalbes default Azure AD OAuth authentication.
     /// `scopes` must be at least on of the scopes defined in https://docs.microsoft.com/en-us/graph/permissions-reference, for instance "User.Read".
-    /// `jsonToClaimMap` should contain sequance of tuples where first element is a name of the of the key in JSON object and second element is a name of the claim.
+    /// `jsonToClaimMap` should contain a sequence of tuples where the first element is the name of the key in the JSON object and the second element is the name of the claim.
     /// For example: `["name", "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name" ]` where `name` is the names of a field in Azure AD's JSON response (see https://docs.microsoft.com/en-us/azure/active-directory/develop/id-tokens or inspect tokens with https://jwt.ms).
     [<CustomOperation("use_azuread_oauth")>]
     member __.UseAzureADAuth(state: ApplicationState, tenantId : string, clientId : string, clientSecret: string, callbackPath : string, scopes : string seq, jsonToClaimMap : (string * string) seq) =

src/Saturn/Authentication.fs

@@ -32,7 +32,7 @@ module OAuth =
     ///OAuth User Information endpoint
     ///For example: https://api.github.com/user
     UserInformationEndpoint: string
-    ///Sequance of tuples where first element is a name of the of the key in JSON object and second element is a name of the claim.
+    ///Sequence of tuples where the first element is the name of the key in the JSON object and the second element is the name of the claim.
     ///For example: `["login", "githubUsername"; "name", "fullName"]` where `login` and `name` are names of fields in GitHub JSON response (https://developer.github.com/v3/users/#get-the-authenticated-user).
     Claims : (string * string) seq
   }