Update nightly pin and doc include paths.

hdevalence · hdevalence · commit f196e16fc34e · 2019-07-31T14:34:47.000-07:00
Closes #283 Closes #282 Closes #290
diff --git a/rust-toolchain b/rust-toolchain
@@ -1 +1 @@
-nightly-2019-07-19
+nightly-2019-07-31
diff --git a/src/r1cs/mod.rs b/src/r1cs/mod.rs
@@ -1,6 +1,6 @@
-#![doc(include = "../docs/r1cs-docs-example.md")]
+#![doc(include = "../../docs/r1cs-docs-example.md")]
 
-#[doc(include = "../docs/cs-proof.md")]
+#[doc(include = "../../docs/cs-proof.md")]
 mod notes {}
 
 mod constraint_system;
diff --git a/src/range_proof/mod.rs b/src/range_proof/mod.rs
@@ -1,5 +1,5 @@
 #![allow(non_snake_case)]
-#![doc(include = "../docs/range-proof-protocol.md")]
+#![doc(include = "../../docs/range-proof-protocol.md")]
 
 use rand;
 
