Add required phrase markers to 5 license rules

Author: syedzohaibshah

src/licensedcode/data/rules/jasper-2.0_3.RULE

@@ -4,4 +4,4 @@ is_license_reference: yes
 relevance: 100
 ---
 
-JasPer License Version 2.0
+{{JasPer}} License Version 2.0

src/licensedcode/data/rules/lgpl-2.1_221.RULE

@@ -4,4 +4,4 @@ is_license_notice: yes
 relevance: 100
 ---
 
-Licensed under the GNU LGPL v2.1
+Licensed under the {{GNU LGPL}} v2.1

src/licensedcode/data/rules/libpng_8.RULE

@@ -4,4 +4,4 @@ is_license_notice: yes
 relevance: 100
 ---
 
-This code is released under the libpng license.
+This code is released under the {{libpng}} license.

src/licensedcode/data/rules/mit_705.RULE

@@ -4,4 +4,4 @@ is_license_reference: yes
 relevance: 100
 ---
 
-MIT Open Source License.
+{{MIT}} Open Source License.

src/licensedcode/data/rules/mpl-2.0_44.RULE

@@ -4,4 +4,4 @@ is_license_reference: yes
 relevance: 100
 ---
 
-the Mozilla Public License 2
+the {{Mozilla Public License}} 2