words matter update2

Author: PhilWakelin

README.md

@@ -57,5 +57,5 @@ This project is licensed under [Apache License Version 2.0](LICENSE).
 ## Reference
 
 * CICSDev tutorial archive [Getting to Grips with JCICS](blog/blog.md)
-* For further details on using the IBM Record Generator for Java see this [tutorial](https://github.com/cicsdev/cics-java-recgen/blob/master/blog.md)
+* For further details on using the IBM Record Generator for Java see this [tutorial](https://github.com/cicsdev/cics-java-recgen/blob/main/blog.md)
 * For details on how to define a CICS OSGi JVM server refer to the Knowledge Center topic [Configuring an OSGi JVM server](http://www.ibm.com/support/knowledgecenter/SSGMCP_5.3.0/com.ibm.cics.ts.java.doc/JVMserver/config_jvmserver_app.html)

projects/com.ibm.cicsdev.link/README.md

@@ -16,7 +16,7 @@ Provides examples for performing CICS LINK operations using both commareas, and
 * `lib/EDUPGM.jar` - a pre-built JAR containing the JZOS generated record that maps the copybook structure used in the `EDUPGM` COBOL sample. The generated class `JZOSCommareaWrapperclass` is used in the `LinkProg2` example to map the fields in the COMMAREA used by the COBOL program `EDUPGM`. 
 * [`/etc/Link`](../../etc/Link) - contains the output of a DFHCSDUP EXTRACT operation needed to define the required programs and transactions.
 * [`/src/Cobol`](../../src/Cobol) - contains the COBOL programs `EC01` and `EDUCHAN` required by these samples.
-* [cics-java-jzosprog repo](https://github.com/cicsdev/cics-java-jzosprog/tree/master/src/Cobol) - repository containing the `EDUPGM` COBOL program.
+* [cics-java-jzosprog repo](https://github.com/cicsdev/cics-java-jzosprog/tree/main/src/Cobol) - repository containing the `EDUPGM` COBOL program.
 
 
 ## Configuration

src/README.md

@@ -2,5 +2,5 @@ src
 ===
 Supporting non-Java programs used in conjunction with the JCICS samples.
 
-See also the [cics-java-jzosprog](https://github.com/cicsdev/cics-java-jzosprog/tree/master/src/Cobol) repository for the `EDUPGM` COBOL program.
+See also the [cics-java-jzosprog](https://github.com/cicsdev/cics-java-jzosprog/tree/main/src/Cobol) repository for the `EDUPGM` COBOL program.