Update readmes (#10)

Author: ikripaka

README.md

@@ -98,7 +98,7 @@ In general, it uses `--check` instructs `simfmt` to exit with an error code if t
 
 ### Running `simfmt` from your editor
 
-* [Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=Blockstream.simplicityhl)
+* [Visual Studio Code][2]
 
 ### Configuring `simfmt`
 
@@ -131,4 +131,5 @@ Simfmt is distributed under the terms of both the MIT license.
 See [MIT license](LICENSE) for details.
 
 
-[1]: https://simplicity-lang.org/
+[1]: https://simplicity-lang.org/
+[2]: [https://simplicity-lang.org/](https://marketplace.visualstudio.com/items?itemName=Blockstream.simplicityhl)

crates/cli/README.md

@@ -145,7 +145,7 @@ $ simfmt --emit files contract.simf
 ## Editor integration
 
 [SimplicityHL][1] formatting is available through the
-[Visual Studio Code extension](https://marketplace.visualstudio.com/items?itemName=Blockstream.simplicityhl).
+[Visual Studio Code extension][3].
 
 ## Limitations
 
@@ -170,4 +170,5 @@ See the repository's [contribution guide](../../Contributing.md) and
 `simfmt` is distributed under the [MIT License](../../LICENSE).
 
 [1]: https://simplicity-lang.org/
-[2]: [https://simplicity-lang.org/](https://github.com/BlockstreamResearch/simfmt/blob/master/.github/scripts/simfmt-check)
+[2]: [https://simplicity-lang.org/](https://github.com/BlockstreamResearch/simfmt/blob/master/.github/scripts/simfmt-check)
+[3]: https://marketplace.visualstudio.com/items?itemName=Blockstream.simplicityhl

crates/prettysimf/README.md

@@ -34,16 +34,6 @@ users:
 * line width;
 * newline style.
 
-## Errors
-
-`pretty_simf_please` returns one of three `PrettySimfError` variants:
-
-* `Operational` means the formatter could not complete an operational step.
-* `FormatError` means the input could not be parsed or formatted safely; its
-  message contains the formatter diagnostics.
-* `StringConversion` means the formatted output unexpectedly contained invalid
-  UTF-8.
-
 The in-memory API has the same [formatter limitations][2] as the `simfmt` CLI.
 
 ## Driver API