Updated main README and added ASAP7 enablement details

Signed-off-by: sakundu <sakundu@ucsd.edu>

Enablements/ASAP7/README.md

 # ASAP7 (7.5T cell library (RVT only), FakeRAM2.0 memory generation)
+
+The Arizona State university's 7nm Predictive PDK (ASAP7) was developed at ASU in collaboration with ARM Research and it is available under BSD-3-Clause license.  
+
+As the ASAP7 enablement does not have memory generators, we use the FakeRAM2.0 memory generator available in the [FakeRAM2.0](https://github.com/ABKGroup/FakeRAM2.0) GitHub repo.
+
+With this combined enablement, testcases with SRAMs can be synthesized, placed and routed using both proprietary (commercial) tools such as Cadence Genus/Innovus, and open-source tools such as OpenROAD.
+
+ The [*./lef*](./lef) directory contains the technology, standard cell and macro lef files, the [*./lib*](./lib/) directory contains the standard cell and macro liberty files and the [*./qrc*](./qrc/) directory contains the qrc technology file.

Enablements/NanGate45/README.md

@@ -6,4 +6,4 @@ As the FreePDK45/NanGate45 enablement does not have memory generators, we use th
 
 With this combined enablement, testcases with SRAMs can be synthesized, placed and routed using both proprietary (commercial) tools such as Cadence Genus/Innovus, and open-source tools such as OpenROAD.
 
- The [*./lef*](./lef) directory contains the technology, standard cell and macro lef files and the [*./lib*](./lib/) directory contains the standard cell and macro liberty files.
+ The [*./lef*](./lef) directory contains the technology, standard cell and macro lef files, the [*./lib*](./lib/) directory contains the standard cell and macro liberty files and the [*./qrc*](./qrc/) directory contains the qrc technology file.

README.md

@@ -19,21 +19,23 @@ The list of available testcases
   - [RTL files for Mempool tile design](./Testcases/mempool_tile/)
   - RTL files for Mempool group design
   
-In the [Nature Paper](https://www.nature.com/articles/s41586-021-03544-w), the authors report results for an Ariane design with 133 memory (256x16, single ported SRAM) macros. We observe that synthesizing from the available Ariane RTL in the [lowRISC](https://github.com/lowRISC/ariane) GitHub repository using 256x16 memories results in an Ariane design that has 136 memory macros. [Here](./Testcases/ariane136/) we show how we instantiate memories for Ariane 136. [Here](./Testcases/ariane136/) we show how we convert the Ariane 136 design to an Ariane 133 design that matches Google's SRAM count. Both of these versions are in our testcase list. The [MemPool](https://github.com/pulp-platform/mempool) tile design and MemPool group design are additional testcases. 
+In the [Nature Paper](https://www.nature.com/articles/s41586-021-03544-w), the authors report results for an Ariane design with 133 memory (256x16, single ported SRAM) macros. We observe that synthesizing from the available Ariane RTL in the [lowRISC](https://github.com/lowRISC/ariane) GitHub repository using 256x16 memories results in an Ariane design that has 136 memory macros. We outline the steps instantiate memories for Ariane 136 [here](./Testcases/ariane136/) and we show how we convert the Ariane 136 design to an Ariane 133 design that matches Google's SRAM count [here](./Testcases/ariane133/). 
 
 
-Here we provide the detailed steps to generate the netlist for each testcase. This netlist is used for the SP&R runs. The directory structure is as follows *./Testcases/\<testcase\>/<rtl\|sv2v>/*. 
-  - *rtl* directory contains all the required rtl files to synthesize the testcase.
-  - If the main repository contains only the SystemVerilog files, we add the converted Verilog file to the sv2v directory.
+All the testcases are available under the [Testcases](./Testcases/) directory. Details of the sub-directories of each testcases:  
+  - *rtl*: directory contains all the required rtl files to synthesize the testcase.
+  - *sv2v*: If the main repository contains multiple Verilog files or the SystemVerilog files, then we convert it to a single Verilog file. This is availabe in the *sv2v* sub-drectory.
 
 ## **Enablements**
 The list of available enablements
-- [NanGate45 Enablements](./Enablements/NanGate45/)
-- [ASAP7 Enablements](./Enablements/ASAP7/)
+- [NanGate45](./Enablements/NanGate45/)
+- [ASAP7](./Enablements/ASAP7/)
+- SKY130HD
   
- Open-source enablements NanGate45 and ASAP7 (will be adding) are utilized in our SP&R flow. The directory structure is *./Enablements/\<enablement\>/<lib\|lef>/*. Here
+Open-source enablements NanGate45 and ASAP7 are utilized in our SP&R flow. All the enablements are available under [Enablements](./Enablements) directory. Details of the sub-directories of each enablements:
  - *lib* directory contains all the required liberty files.
  - *lef* directory contains all the required lef files.
+ - *qrc* directory contains all the required qrc tech files.
   
 Also, we provide steps to generate the fakerams.
 
@@ -44,6 +46,7 @@ We provide multiple flows for each of the testcases and enablements. They are lo
 The details of each flow are shown below:  
 - **Flow-1:**  
   <img src="./Flows/figures/flow-1.PNG" alt="Flow-1" width="800"/>  
+
 - **Flow-2:**  
   <img src="./Flows/figures/flow-2.PNG" alt="Flow-2" width="800"/>    
 - **Flow-3:**  
@@ -119,12 +122,12 @@ In the table below, we provide the details of each testcase on each of the enabl
 </tbody>
 </table>
   
-The directory structure is as follows *./FLows/\<enablement\>/\<testcase\>/<constraint\|def\|netlist\|scripts\|run>/*. Here
+The directory structure is as follows *./FLows/\<enablement\>/\<testcase\>/<constraint\|def\|netlist\|scripts\|run>/*. Details of the sub-directories for each testcase on each enablement:
 - *constraint* directory contains the *.sdc* file.
 - *def* directory contains the def file with pin placement and die area information.
 - *scripts* directory contains required scripts to run SP&R using the Cadence and OpenROAD tools.
 - *netlist* directory contains the synthesized netlist. We provide a synthesized netlist that can be used to run P&R.
-- Also, we provide the *run* directory to run the scripts provided in the *scripts* directory.
+- *run* directory to run the scripts provided in the *scripts* directory.
 
 
 ## **Code Elements**