Remove TODOs from README.md

Tracking these through issues is better.

Also, `rustfmt` only needs to be called on top-level files
(see rust-lang/rustfmt#2426). It does
need to be called on every example, though, as those count as top-level
files.

Mention that signed GPG commits are preferred.

Tree-SHA512: 5e4a308e71a6dd437a93f337820eb817185c235bb2796bcf28d91e1e45f91cbce5dc7e305e7adc7ee96c4292ab91fa89eb932a0b0007f98191740a9d15ddb03f

README.md

@@ -58,30 +58,11 @@ Be aware that the API (of rust-clighting-rpc, but also that of c-lightning
 itself) is not finalized. This means that it may change from version to version and break your
 compile, sorry!
 
-# To do
-
-- verify use of `i64` versus `u64` in API
-- document low and high level handling
-- document error handling
-- reproducible functional test that exercises against actual lightning instances (regtest?)
-- a better way to get at the data for failed payments
-
-```
-"code" : 205, "message" : "Could not find a route", "data" : ...
-```
-
-  `data` could be parsed into a structure, but this depends on the kind of error
-
-- the API could make more use of enums where the possible values are known; for example the
-  `addresstype` parameter to `newaddr`, but also in returned structures. This has to be weighted
-  against flexibility, though, in case the API is extended later.
-
-- decide on `&str` versus `String` on high-level API (but at least make sure it is consistent)
-
-# Style guidelines
+# Contributing guidelines
 
 - Four spaces
-- Call `rustfmt src/*.rs` before committing
+- Call `rustfmt src/lib.rs examples/*.rs` before committing
+- If you can, GPG-sign at least your top commit when filing a PR
 
 # Credits
 

examples/ex_1.rs

@@ -13,6 +13,10 @@ fn main() {
     println!("getinfo result: {:?}", client.getinfo().unwrap());
 
     for style in &["perkb", "perkw"] {
-        println!("feerates {}: {:?}", style, client.feerates(style.to_string()).unwrap());
+        println!(
+            "feerates {}: {:?}",
+            style,
+            client.feerates(style.to_string()).unwrap()
+        );
     }
 }