update README

README.md

@@ -50,6 +50,7 @@ variables:
   except:
   - triggers
   - schedules
+  - api
 
 ## Build jobs
 ```
@@ -65,10 +66,10 @@ when the pipeline gets triggered though the API or an automatic schedule.  See
 Below this, you can configure your build jobs.  A normal job looks like this:
 
 ```
-build-coq.8.8.2:
+build-coq.8.10.1:
   <<: *template
   variables:
-    OPAM_PINS: "coq version 8.8.2"
+    OPAM_PINS: "coq version 8.10.1"
 ```
 
 This builds your project against Coq 8.8.2.  The first line determines the job
@@ -86,24 +87,26 @@ some of the things that are common amongst Iris build jobs.
 ## Nightly builds
 
 To make sure that a project keeps working as we update Iris, we can set up
-nightly builds against the latest Iris version.  To this end, add a job like
-this:
+nightly builds against the latest Iris version, and often we pin that to a
+*branch* of Coq to make sure we keep working with the next patch release.  To
+this end, add a job like this:
 
 ```
 build-iris.dev:
   <<: *template
   variables:
-    OPAM_PINS: "coq version 8.9.0   coq-stdpp.dev git git+https://gitlab.mpi-sws.org/iris/stdpp.git#$STDPP_REV   coq-iris.dev git git+https://gitlab.mpi-sws.org/iris/iris.git#$IRIS_REV"
+    OPAM_PINS: "coq version 8.10.dev   coq-stdpp.dev git git+https://gitlab.mpi-sws.org/iris/stdpp.git#$STDPP_REV   coq-iris.dev git git+https://gitlab.mpi-sws.org/iris/iris.git#$IRIS_REV"
   except:
   only:
   - triggers
   - schedules
+  - api
 ```
 
 The last four lines configure this job to *not* run when new commits are pushed
 to the repo, and instead make it run when a pipeline is triggered through the
 REST API or by a schedule.  The pins are set up to install a development version
-of all the dependencies.
+of all the dependencies, and the `8.10` branch of Coq.
 
 Now ask an admin to set up a pipeline schedule.  The schedule should set all the
 `_REV` variables to the branches that should be tested against.  We usually only
@@ -121,11 +124,11 @@ about broken builds.  This can be achieved by having an admin follow these steps
 To track performance of the project, one of the jobs should look like this:
 
 ```
-build-coq.8.8.0:
+build-coq.8.10.0:
   <<: *template
   variables:
-    OPAM_PINS: "coq version 8.8.0"
-    TIMING_CONF: "coq-8.8.0"
+    OPAM_PINS: "coq version 8.10.0"
+    TIMING_CONF: "coq-8.10.0"
   tags:
   - fp-timing
 ```