chore: Prepare 0.2 release (#321)

Signed-off-by: Lucio Franco <[email protected]>

examples/helloworld-tutorial.md

@@ -113,12 +113,12 @@ name = "helloworld-client"
 path = "src/client.rs"
 
 [dependencies]
-tonic = "0.1"
+tonic = "0.2"
 prost = "0.6"
 tokio = { version = "0.2", features = ["macros"] }
 
 [build-dependencies]
-tonic-build = "0.1.0"
+tonic-build = "0.2"
 ```
 
 We include `tonic-build` as a useful way to incorporate the generation of our client and server gRPC code into the build process of our application. We will setup this build process now:

examples/routeguide-tutorial.md

@@ -180,7 +180,7 @@ Edit `Cargo.toml` and add all the dependencies we'll need for this example:
 
 ```toml
 [dependencies]
-tonic = "0.1"
+tonic = "0.2"
 prost = "0.6"
 futures-core = "0.3"
 futures-util = "0.3"
@@ -192,7 +192,7 @@ serde_json = "1.0"
 rand = "0.7"
 
 [build-dependencies]
-tonic-build = "0.1.0"
+tonic-build = "0.2"
 ```
 
 Create a `build.rs` file at the root of your crate: