docs: add links to the CHANGELOG from the README.md for Java and Node (…

…#198)

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Source-Link: googleapis/synthtool@5936421

packages/google-cloud-datacatalog/README.md

@@ -14,6 +14,9 @@
 Google Cloud Data Catalog API client for Node.js
 
 
+A comprehensive list of changes in each version may be found in
+[the CHANGELOG](https://github.com/googleapis/nodejs-datacatalog/blob/master/CHANGELOG.md).
+
 * [Data Catalog Node.js Client API Reference][client-docs]
 * [Data Catalog Documentation][product-docs]
 * [github.com/googleapis/nodejs-datacatalog](https://github.com/googleapis/nodejs-datacatalog)

packages/google-cloud-datacatalog/synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-datacatalog.git",
-        "sha": "4fa5946f86af6b8cfa9101223ce59fd4c87cf9e2"
+        "sha": "55f4dc19d772d74f01fc4eedabb90a18c4be7301"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "89d431fb2975fc4e0ed24995a6e6dfc8ff4c24fa"
+        "sha": "5936421202fb53ed4641bcb824017dd393a3dbcc"
       }
     }
   ],