Merge remote-tracking branch 'origin/unstable' into capella-merge

book/src/docker.md

@@ -57,7 +57,7 @@ $ docker pull sigp/lighthouse:latest-modern
 Image tags follow this format:
 
 ```
-${version}${arch}${stability}${modernity}
+${version}${arch}${stability}${modernity}${features}
 ```
 
 The `version` is:
@@ -81,6 +81,12 @@ The `modernity` is:
 * `-modern` for optimized builds
 * empty for a `portable` unoptimized build
 
+The `features` is:
+
+* `-dev` for a development build with `minimal-spec` preset enabled.
+* empty for a standard build with no custom feature enabled.
+
+
 Examples:
 
 * `latest-unstable-modern`: most recent `unstable` build for all modern CPUs (x86_64 or ARM)

book/src/validator-inclusion.md

@@ -59,14 +59,7 @@ The following fields are returned:
 - `previous_epoch_head_attesting_gwei`: the total staked gwei that attested to a
 	head beacon block that is in the canonical chain.
 
-From this data you can calculate some interesting figures:
-
-#### Participation Rate
-
-`previous_epoch_attesting_gwei / previous_epoch_active_gwei`
-
-Expresses the ratio of validators that managed to have an attestation
-voting upon the previous epoch included in a block.
+From this data you can calculate:
 
 #### Justification/Finalization Rate