docs: fix duplicated words in vfs and backend documentation

docs/content/azureblob.md

@@ -354,13 +354,13 @@ be explicitly specified using exactly one of the `msi_object_id`,
 `msi_client_id`, or `msi_mi_res_id` parameters.
 
 If none of `msi_object_id`, `msi_client_id`, or `msi_mi_res_id` is
-set, this is is equivalent to using `env_auth`.
+set, this is equivalent to using `env_auth`.
 
 #### Federated Identity Credentials
 
 If these variables are set, rclone will authenticate with federated identity.
 
-- `tenant`: tenant ID of of the storage
+- `tenant`: tenant ID of the storage
 - `client_id`: client ID of the application the user will authenticate to storage
 - `msi_client_id`: managed identity client ID of the application the user will
   authenticate to

docs/content/azurefiles.md

@@ -325,13 +325,13 @@ be explicitly specified using exactly one of the `msi_object_id`,
 `msi_client_id`, or `msi_mi_res_id` parameters.
 
 If none of `msi_object_id`, `msi_client_id`, or `msi_mi_res_id` is
-set, this is is equivalent to using `env_auth`.
+set, this is equivalent to using `env_auth`.
 
 #### Federated Identity Credentials
 
 If these variables are set, rclone will authenticate with federated identity.
 
-- `tenant`: tenant ID of of the storage
+- `tenant`: tenant ID of the storage
 - `client_id`: client ID of the application the user will authenticate to storage
 - `msi_client_id`: managed identity client ID of the application the user will
   authenticate to

docs/content/bisync.md

@@ -1974,7 +1974,7 @@ for performance improvements and less
 options as in `sync`)
 - Equality checks before a sync conflict rename now fall back to `cryptcheck`
 (when possible) or `--download`,
-instead of of `--size-only`, when `check` is not available.
+instead of `--size-only`, when `check` is not available.
 - Bisync no longer fails to find the correct listing file when configs are
 overridden with backend-specific flags.
 - Bisync now fully supports comparing based on any combination of size, modtime,

docs/content/docs.md

@@ -1702,7 +1702,7 @@ like symlinks under Windows). Ignored files won't be copied, moved or
 deleted in a sync.
 
 If you supply this flag then rclone will copy symbolic links from any
-supported backend backend, and store them as text files, with a
+supported backend, and store them as text files, with a
 `.rclonelink` suffix in the destination.
 
 The text file will contain the target of the symbolic link.
@@ -2234,7 +2234,7 @@ rclone will use multiple threads to transfer the file (default 256M).
 Capable backends are marked in the
 [overview](/overview/#optional-features) as `MultithreadUpload`. (They
 need to implement either the `OpenWriterAt` or `OpenChunkWriter`
-internal interfaces). These include include, `local`, `s3`,
+internal interfaces). These include `local`, `s3`,
 `azureblob`, `b2`, `oracleobjectstorage` and `smb` at the time of
 writing.
 

docs/content/swift.md

@@ -151,7 +151,7 @@ rclone sync --interactive /home/local/directory remote:container
 
 ### Configuration from an OpenStack credentials file
 
-An OpenStack credentials file typically looks something something
+An OpenStack credentials file typically looks something
 like this (without the comments)
 
 ```sh

vfs/vfs.md

@@ -271,7 +271,7 @@ Rclone reads `--vfs-read-chunk-streams` chunks of size
 `--vfs-read-chunk-size` concurrently. The size for each read will stay
 constant.
 
-This improves performance performance massively on high latency links
+This improves performance massively on high latency links
 or very high bandwidth links to high performance object stores.
 
 Some experimentation will be needed to find the optimum values of