Fixed bare URLs in README.md

Fix markdown-lint rule 034-no-bare-urls.md

Change-Id: I084d9c62ef090cacad62a41b36e3f69f8d4313ee
Signed-off-by: Chris Cain <cjcain@us.ibm.com>
diff --git a/README.md b/README.md
index 21735b0..08bbdae 100644
--- a/README.md
+++ b/README.md
@@ -31,17 +31,17 @@
 ### Power10
 
 IBM EnergyScale for Power10 Processor-Based Systems whitepaper:
-https://www.ibm.com/downloads/cas/E7RL9N4E
+<https://www.ibm.com/downloads/cas/E7RL9N4E>
 
 OCC Firmware Interface Spec for Power10:
-https://github.com/open-power/docs/blob/P10/occ/OCC_P10_FW_Interfaces_v1_17.pdf
+<https://github.com/open-power/docs/blob/P10/occ/OCC_P10_FW_Interfaces_v1_17.pdf>
 
-OCC Firmware: https://github.com/open-power/occ/tree/master-p10
+OCC Firmware: <https://github.com/open-power/occ/tree/master-p10>
 
 ### Power9
 
 IBM EnergyScale for POWER9 Processor-Based Systems:
-https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?htmlfid=49019149USEN&
+<https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?htmlfid=49019149USEN&>
 
 OCC Firmware Interface Spec for POWER9:
-https://github.com/open-power/docs/blob/P9/occ/OCC_P9_FW_Interfaces.pdf
+<https://github.com/open-power/docs/blob/P9/occ/OCC_P9_FW_Interfaces.pdf>