docs: add RELEASING.md and CHANGES.md

And delete old keys.json.enc.

Change-Id: Iadc459036daa416a8ef43ffda62cd560e61996b6
Reviewed-on: https://code-review.googlesource.com/c/google-api-go-client/+/40276
Reviewed-by: kokoro <[email protected]>
Reviewed-by: Tyler Bui-Palsulich <[email protected]>

CHANGES.md

@@ -0,0 +1,39 @@
+# v0.3.2
+
+This patch releases re-builds the go.sum. This was not possible in the
+previous release.
+
+_Please note:_ the release version is not indicative of an individual client's
+stability or version.
+
+# v0.3.1
+
+This patch release removes github.com/golang/lint from the transitive
+dependency list, resolving `go get -u` problems.
+
+_Please note_: this release intentionally has a broken go.sum. Please use v0.3.2.
+
+_Please note:_ the release version is not indicative of an individual client's
+stability or version.
+
+# v0.3.0
+
+go.mod modifications, including removal of go 1.12 statement and update of
+opencensus dependency.
+
+_Please note_: the release version is not indicative of an individual client's
+stability or version.
+
+# v0.2.0
+
+General improvements.
+
+_Please note:_ the release version is not indicative of an individual client's
+stability or version.
+
+# v0.1.0
+
+Initial release along with Go module support.
+
+_Please note:_ the release version is not indicative of an individual client's
+stability or version.

RELEASING.md

@@ -0,0 +1,17 @@
+# How to Release this Repo
+
+1. Determine the current release version with `git tag -l`. It should look
+   something like `vX.Y.Z`. We'll call the current version `$CV` and the new
+   version `$NV`.
+1. On master, run `git log $CV..` to list all the changes since the last
+   release.
+1. Edit `CHANGES.md` to include a summary of the changes.
+1. Mail the CL containing the `CHANGES.md` changes. When the CL is approved,
+   submit it.
+1. Without submitting any other CLs:
+   a. Switch to master.
+   b. `git pull`
+   c. Tag the repo with the next version: `git tag $NV`.
+   d. Push the tag: `git push origin $NV`.
+1. Update [the releases page](https://github.com/googleapis/google-api-go-client/releases)
+   with the new release, copying the contents of the CHANGES.md.