Reactivate cURL git submodule

- Fix commands in `README.md`

Signed-off-by: Christian Blichmann <cblichmann@google.com>

oss-internship-2020/curl/README.md

@@ -5,7 +5,7 @@ This library is a sandboxed version of curl's C API,
 
 ## Setup
 
-The repository can be cloned using: `git clone --recursive [URL to this repo]`
+The repository can be cloned using: `git clone --recursive <URL to this repo>`
 The `--recursive` flag ensures that submodules are also cloned.
 
 Alternatively, if the repository has already been cloned but the submodules have
@@ -15,8 +15,13 @@ The full list of Sandboxed API dependencies can be found on
 [Sandboxed API Getting Started page](https://developers.google.com/sandboxed-api/docs/getting-started).
 
 The following commands, used from the current `curl/` directory, build the
-library: `mkdir -p build cd build cmake .. -G Ninja -D SAPI_ROOT=[path to
-sandboxed-api] cmake --build .`
+library:
+
+```bash
+mkdir -p build && cd build
+cmake .. -G Ninja -D SAPI_ROOT=<path to sandboxed-api>
+cmake --build .
+```
 
 ## Implementation details
 

oss-internship-2020/curl/curl_wrapper/curl

@@ -0,0 +1 @@
+Subproject commit f52c6981c53ae55b3f9e9179c698a66bd2f7b655